How Can We Help?

Do you have a flicker-free BR30 bulbs?

You guys don’t happen to have any flicker-free BR30 lamps available? I didn’t see any but I figured I would double check. 

Our BR30 lamps have a flicker rate of 6%, which is far lower than traditional incandescent lamps (20-30%) but unfortunately are not fully flicker-free based on our internal standards (~2%).

Flicker-free and T8 LED Tube Light Questions

So I’m doing research on LEDs and why some leds flicker and strobe. I see this is truly an issue as a lot of people deal with this problem. For the record, I’m talking about (visible) flickering/strobing. I know all LEDs flicker which we mostly can’t see, but causes headaches, fatigue, etc. But I’m dealing with visible flickering that driving me nuts. 

-Why does this happen with certain LEDs? 

-Will your “waveform flicker free” tube lights stop the visible flicker I’m having?

-And I’m very curious about what sets your lights apart from competitors with this “flicker-free technology”. Do you use a super high-quality driver in the bulb? 

Generally speaking, the flicker rate of often defined by the capability of the connected power supply. If the power supply is not adequately treating the power being afforded to the light source, then it will often encounter flicker. 

We are happy to confirm that our T8 LED Tube Lights offer flicker-free output due in part to the drivers within. If you would like to purchase and try these products, please feel free to take advantage of our 30-day return policy. We will gladly provide a prepaid return label for any unneeded items from domestic orders. 

I noticed that you have T8 tubes in a (non-flicker-free) and (flicker-free) but there’s no price difference. What’s the difference between them besides offering a different kelvin? Is there a time a non-flicker-free bulb has its place? 

All of our T8 lamps are flicker-free, but not all of our pages will necessarily indicate this. The underlying product, however, is the same (i.e. PN 4024), so you will see that the flicker performance is also identical.

So I currently have my fixtures rewired for double-ended power. And I see your tubes are configured to be used on single or double-end power. As I look closer there’s a problem, your spec sheet says (shunted) tombstones are required. I have non-shunted tombstones as all double-end power rewire configurations I've come across state there's no need to change the tombstones as non-shunted or shunted can be used with double-end configuration. Will this configuration not work with your bulbs? 

W have reviewed our product literature and it appears that connecting the lamps using the fixture configuration you describe is permissible using both shunted and non-shunted tombstones. Please see below, with the red square highlighting what would be your wiring method:

Flicker-free Recessed Bulbs for Enclosed Fixtures

Do you have any nonflicker bulbs that work in an enclosed fixture? 

Unfortunately, we do not currently offer standard lightbulbs that are compatible with enclosed fixtures while also providing flicker-free output. 

Do need to order about 40 bulbs for recessed lights? Is either of these no flicker? 

For recessed lighting, we would likely recommend our BR30 bulbs such as the Ultra High 95 CRI E26 BR30 LED Bulbs for Home & Residential and the Full Spectrum E26 BR30 LED Bulbs. As previously noted, these bulbs are unfortunately not compatible with fully enclosed fixtures. 

Our BR30 lamps have a flicker rate of approximately 6%. While this is not the same level as our flicker-free lamps which have a flicker rate of < 1%, these lamps are still below the 15-30% flicker rate that is commonly seen with incandescent lamps.

Flicker-free LED Strip Lighting Options

I am highly sensitive to flicker - migraine caused by flicker eliminates short-term memory so I can’t work along with other debilitating symptoms. I need something that eliminates both brightness flicker and color flicker as much as possible. Both types of flicker trigger me. I’m a geneticist and have been able to research neuroscience enough that I have a good idea of what the biological data suggests might be necessary for me, but I definitely need your help to get a clearer idea of the mechanisms of your products, especially some with sparser descriptions. 

We can confirm that the TRIAC Dimmable Power Supply for LED Strip can provide connected lights with flicker-free functionality. The TRIAC dimmable power supply has also been tested with the following wall dimmer products.

Dimmer Compatibility List:

https://www.waveformlighting.com/datasheets/CD_3093.pdf?src=pse

We can also confirm that the FilmGrade™ DMX LED Dimmer & Decoder with 5-Channel Output product can adjust the PWM frequency of connected light products between 500 Hz and 30 kHz. Here are the product specs.

You may also be interested to know that we are planning to release T8 Light Fixtures for use in office installations, which are designed to be compatible with our line of flicker-free, full-spectrum T8 LED tube light products, such as the CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free T8 LED Tube Lights.

​The benefit offered by these over-integrated fixtures is that if the T8 product encounters an outage within the 50,000 hours lifetime (5-year warranty), they can be easily replaced. Contrastingly, integrated features usually need to be entirely replaced.

Do you have 40W flicker-free bulbs?

Do you think you might have 40 W flicker-free bulbs in the future? I need one for a lamp next to my reading chair, for reading at night.

While we are not aware of the specific product development plans, we would be more than happy to share your interest in that option with our team for future development! We can certainly understand the benefits that such an option could provide, and look forward to expanding our catalog in the future.

As an alternative, you may be interested in the SUPERWARM™ 1700K Flicker-Free A19 10W LED Bulb, which is a flicker-free 50W equivalent product that outputs a rosy warm color. 

Flicker-free Ceiling LED Lights

I want to replace my existing ceiling lights with Flicker Free. They are mounted on the ceiling. What flicker-free replacement light do you have that would be comparable?

While we would normally recommend our dimmable Ultra High 95 CRI E26 BR30 LED Bulb for Home & Residential, these items are not flicker-free. As an alternative, you might be interested in our 2700K and 3000K CENTRIC HOME™ Flicker-Free A19 10W LED Bulbs. 

We also offer the CENTRIC HOME™ LED Strip Lights for Home & Residential, which are often installed on cornices or ceiling lines for illuminating residential spaces. These lights can be powered with an in-wall power supply and controlled using wall dimmers or smart home systems. 

6500K Natural North Light for Studio Room

I will be ordering 3 Northlux 96 CRI LED shop light fixtures from you.

Do I order for north light windowless art studio room

6500K light? Do I order the Centric daylight full spectrum FLICKER FREE T8 LED tube light or the Northlux 95 CRI T8 LED tube? Does the Northlux 95 for art studio flicker?

For my windowless art studio, I am purchasing three Northlux light fixtures from you. Do I order the CENTRIC DAYLIGHT full spectrum FLICKER FREE tube lights or the NORTHLUX 95 CRI T8 LED tubes?

By placing the dimensions into our Lumen Estimation Calculator, the space would be evenly illuminated with eight T8 LED Tube Lights. It could also be illuminated with four strategically-placed T8 LED Tube Lights if only the working areas require illumination. 

For artwork creation spaces where north-facing daylight is helpful, we generally recommend the 6500K NorthLux™ 95 CRI T8 LED Tube for Art & Studio. These lights provide full spectrum output and feature a high CRI of 95+. 

​Further, we can confirm that both the CENTRIC DAYLIGHT™ and NorthLux™ T8 LED Tube Lights are flicker-free. In case it proves to be helpful, the T8 LED Tube Light listings are identical products that are provided with unique landing pages for marketing purposes. As such, the 6500K option of either listing will provide identical output. 

It might also be helpful to know that not all fluorescent fixtures are compatible with T8 LED Tube Lights. While the ballasts within some models are compatible, incompatible models would require rewiring to bypass the ballast for a direct wire connection. 

We have shared a link below comparing the two options for artwork creation. If you would like to directly compare these options, please feel free to take advantage of our 30-day return policy. We will gladly provide prepaid return labels for any domestic orders within 30 days of delivery. 

Difference Between 5000K and 6500K Bulbs

95 CRI Flicker-free LED Light in 5000K

Is any LED available with both wrlds, no flicker, and 95 CRI or higher and 5000K?

Based on the details provided, we would likely recommend our 5000K CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free A19 10W LED Bulbs. These products have full spectrum output, a high CRI of 95+, and feature flicker-free operation. 

Full Spectrum LED Bulb for SAD Disorder

I am an 86-year-old female living in a retirement home. I have a small unit on the first floor of a multi-unit building. I would like advice on what full spectrum light to buy. I may get a SAD disorder, want to try one of your bulbs.

Based on the details provided, we would likely recommend our flicker-free lights that offer a high CRI in the 2700K color temperature. The flicker-free aspect is helpful for reducing eye strain, and the CRI is helpful for providing accurate color representation. 

​You may have noticed in the past that cheap lightbulbs or fluorescent tubes wash subjects in a yellow hue, which is largely due to those products having a much lower CRI than our products (With a CRI of 60-80 compared to 95+). The 2700K color temperature is often recommended for residential installations. This color temperature provides a warm glow that is easier on the eyes than the cooler color temperatures used in art studios and retail spaces.

The primary products that we would recommend would be the 2700K Ultra High 95 CRI A19 5W LED Filament Bulb for Home & Residential or the 2700K CENTRIC HOME™ Flicker-Free A19 10W LED Bulb. The former option provides a warm output in a filament-style format, whereas the latter offers much higher output but is not compatible with fully enclosed fixtures.

Which of your products are flicker-free and how they compare on an oscilloscope to the Phillips product?

Can you tell me which of your products are flicker-free, and how they compare on an oscilloscope to this Phillips product: 

Philips LED Dimmable Warm Glow Effect A19

I liked your oscilloscope comparison at this article and I'm wondering how yours and the Phillips one compare. One of my kids is very sensitive to flicker, so I want to try to figure out what's best for him.

While we do not have oscilloscope readings for all of our products, we can confirm that our standard A19 and A21 bulbs feature flicker-free output. 

Though currently out of stock, our 24V CENTRIC SERIES™ Flicker-Free Dimmable Power Supply for LED Strip is also able to provide flicker-free output for 24V LED Strip Light products. 

From our review of the Philips product, they appear to provide flicker-free output as well. That being said, it does not appear that the CRI is listed on the product listing. 

Generally speaking, our LED technology uses red phosphor in order to create a high CRI output of 95+. The larger brands often use the far less expensive yellow phosphor, which typically provides a maximum CRI of about 80. 

As a further note, you can tell from our photometric test reports page that our A19 bulbs have a flicker percentage of 0%, and have a flicker index of 0.00. As such, we would not expect them to provide any flicker while operating. 

That aside, if you would like to try and compare our products, please feel free to take advantage of our 30-day return policy. We will gladly provide prepaid return labels so that items from domestic orders can be returned for a refund. 

We need flicker-free for one of my kids so I'm looking at your CENTRIC HOME Flicker-Free A21 LED bulbs. We're testing them in a 300-square-foot room that has four bulb sockets and no dimmer circuit. Usually with four 60W bulbs we feel like it's a bit dark in the room.

On the other hand, with the Phillips flicker-free product I mentioned below (60W; I believe it's 2700K with no dimmer) my wife says the Phillips bulbs hurt her eyes. I know that's a little vague, but which of your products would you suggest I try first: 2700K or 3000K, and 60W or 100W? 

By room size I'd think 100W, but we don't know what makes the Phillips bulbs hurt my wife's eyes, and she's worried about going brighter if the 60W Phillips bulbs already hurt.) I'm hoping that as an expert you might have a better chance at pinpointing what we need first-try than I would as a non-expert.

Based on my use of the Lumen Estimation Calculator, it appears that a 300 square foot room would be fully illuminated by 3,188 lumens. As each of our A19 lightbulbs outputs 800 lumens, we would likely recommend using four of our 2700K CENTRIC HOME™ Flicker-Free A19 10W LED Bulbs. For reference, 800 lumens is equivalent to a 60-watt incandescent bulb. 

We like to define glare as the contrast between the darkest point in a room and the brightest. If a light source is considerably brighter than the surrounding area and does not use any type of diffusion covering, the light output can feel stark and relatively intense. If that glare is a persistent issue, we recommend utilizing a fixture that has a covering for diffusion, which should hopefully help to reduce the effect.

While we might recommend our 2700K Ultra High 95 CRI A19 5W LED Filament Bulb for Home & Residential as an alternative given the relatively lower lumen output per bulb (450 lumens vs 800), these products are not flicker-free and as such may not be the best option for your installation. 

Flicker-free and Dimmable T8 or T12 Fixtures

Looking for fixtures that will continue to be the most cost-effective moving forward. Expecting we will add multiple drivers for several light series. Looking for drivers to run multiple lights with a high refresh rate, of 1000 megahertz? So as not to notice flicker when dimming. 

Though we do not have T12 tube lights or fixtures available, we are happy to confirm that our T8 LED Tube Lights and LED Ready T8 Fixtures can provide full-spectrum, flicker-free output without requiring ballasts or drivers for operation. These T8 LED Tube Lights are 48", provide a high CRI of 95+, and utilize the G13 base (Medium Bi-pin). 

That being said, please note that our T8 LED Tube Lights and Fixtures are unfortunately not dimmable nor compatible with dimmers. As such, they may not be the ideal light sources based on the installation requirements provided.

Flicker-free and High CRI with Lowest Color Temperature  LED Bulb Products

I am emailing to get some information about your different products. I am looking to find bulbs that are flicker-free with the highest CRI you have available.

I would also like to know what is the lowest color temperature you have available for those 2 features. I'm looking to reduce the bluest light while maintaining the highest CRI and having no flicker. If you could help me with the proper product I'm not sure if your circadian bulbs are flicker-free.

Also, I'd love information on the effectiveness of your flicker-free technology. I'd like to learn because a lot of manufacturers say flicker free but they aren't actually.

Based on the details provided, you may be interested in the SUPERWARM™ 1700K Flicker-Free A19 10W LED Bulb. Though providing rosy warm light, it features full spectrum output and a high CRI of 95+. This product also features blue-free output and an M/P ratio of 0.274 for reduced circadian cycle impact. 

While we also offer the dimmable 2400K Lux24™ Circadian LED Bulb - 2400K 95 CRI E26 A19 LED Filament Bulb, this item is unfortunately not flicker-free. That said, it is dimmable and features the same high CRI of 95+. 

We have shared a select few articles regarding our LED technology below, which we hope prove to be helpful and informative. 

Flicker-Free LED Lighting

Are LED Lights Safe? Are They Harmful to Your Health?

Do high CRI LED lamps have a lower M/P ratio?

Blue Light, Melatonin and Circadian Rhythms

Flicker-free 40 Watts Clear E26 Edison Bulb

Do you have a product that is a clear E26 bulb? Our new lamp requires a clear E26 40-Watt bulb. I was hoping you stock a flicker-free alternative. 

Based on the details provided, it appears that the closest match in our catalog would be our 40W-equivalent Ultra High 95 CRI A19 5W LED Filament Bulb for Home & Residential, which utilizes a clear bulb enclosure. 

However, this product is unfortunately not flicker-free. We apologize!

Do you make any bulbs with no flicker or blue light?

Do you make any bulbs with no flicker or blue light? Do you have a canned ceiling light bulb version of this same bulb? 

We can confirm that we have many flicker-free products in our catalog, including the SUPERWARM™ 1700K Flicker-Free A19 10W LED Bulb. As can be noted from the product’s photometric report, this item outputs a very low blue wavelength energy output and has an M/P ratio of 0.274 for ultra-low circadian impact. 

While we unfortunately do not sell the SUPERWARM™ 1700K product in a BR30 version for recessed lighting, we would be more than happy to share your interest in that format with my product team for future development. Hopefully, we will be able to add that option to our catalog in the future. 

Does the Centric Daylight LED Shop Light Fixture flicker-free?

I need two of the above-mentioned lights. I'm an artist, and these lights hang over my work table in my studio. I'm replacing two lights. Are you saying that these don't "flicker"? Do they have a plug? The ones I have plugged into an extension cord. 

We are happy to confirm that the CENTRIC DAYLIGHT™ 95 CRI LED Shop Light Fixtures offer fully flicker-free light output and utilize an included DC power cable for operation. These fixtures can also be daisy-chained to share a single DC power source using the included daisy-chain cables. 

Is your Centric Home LED strip flicker-free?

Is your Centric Home LED strip as flicker-free as the FilmGrade? Looking for the most flicker-free option in a warm light temp. 

We can confirm that the 2700K CENTRIC HOME™ LED Strip Lights feature the warmest color temperature among the product line. Further, both it and the FilmGrade™ WHITE LED Strip Lights are flicker-free when paired with a flicker-free power supply of matching voltage such as our FilmGrade™ DC Power Supply for LED Strip.

While not available within every test report, many of the reports on our Photometric Test Report page list the flicker rate of the LED Strip Lights, which are typically tested using the FilmGrade™ DC Power Supplies. 

Flicker-free with 800+ lumens Output Lighting

 I am trying to achieve the lighting required on page 4 of the link below. https://trackman.zendesk.com/hc/en-us/article_attachments/4403267887003/Spotlight_Installation_Instructions_4.20__1_.pdf. Can you please recommend which of your lighting would work best? I can use the shop light style or more of a can/flood option. 

Based on our review of the document provided, it appears that a flicker-free option with an output greater than 800 lumens is recommended for your installation. As such, it appears that we have several options that could work well. 

As a primary consideration, while our BR30 bulbs are a great option for recessed lighting, they are unfortunately not flicker-free which may affect the video capture of your installation. 

You may be interested in our NorthLux™ 95 CRI T5 LED Linear Light Fixtures due to the ease of installation, flicker-free output, and high CRI of 95+. These light sources can be conveniently installed using the included brackets and DC power cable, and do not require a dedicated power supply. 

As a secondary recommendation, our NorthLux™ 95 CRI LED Shop Light Fixtures are similar to the linear light fixtures in that they only require a DC connection for power, and offer flicker-free output. As is also true of the linear light fixtures, this product is not designed for wiring to line voltage or use with dimmers. 

If wall dimmers and smart home systems are of benefit for your installation, we would recommend the FilmGrade™ WHITE LED Strip Lights, which are designed with video capture in mind. As this item is available in both the 12V and 24V versions, we strongly recommend selecting a power supply of a matching voltage. 

Are your products ever used for high-speed cameras?

Are your products ever used for high-speed cameras? We are looking to take a ~1000 fps video capture, and we need no flickering in our light source. Would your products be suitable?

Our flicker-free products provide completely smooth light output (no ripple) or very high-frequency PWM (20,000 times per second), which would allow you to utilize our LED products with your high-speed camera systems without any issues.

Below is an article that goes over some additional information on how flicker is resolved for camera systems using our lighting:

https://www.waveformlighting.com/film-photography/an-introduction-to-flicker-free-led-strip-dimming

What does a 6% flicker rate mean?

I have a 4 lights rail fixture, currently running on 75W E27 BR reflectors. I'm looking for a flicker-free alternative. If I got it right, E26 bulbs should work, though not a perfect fit. As far as I understand, your only option is the 6% flicker bulb. What does 6% mean? that when it "flickers", it is only 6% less than full power? How is it in comparison to indecent flicker? 

While the measurements between the E26 and E27 are very similar, we find that the two standards are not always compatible. We have attached a link to a blog post on the topic below, in the hopes that it proves to be helpful for your purchase planning process. 

E26 vs E27 Bulbs - Interchangeable? Not Necessarily!

Generally speaking, a 6% flicker rate means that there will be a 6% relative difference in brightness between the maximum and minimum brightness output by the light source during a flicker cycle. The lower the relative difference, the less noticeable flicker usually is. 

Compared to our flicker-free LED lights (such as the CENTRIC HOME™ Flicker-Free A19 10W LED Bulb) which offer a 0% flicker rate, traditional incandescent light sources typically have a flicker rate of 15%. 

I know your article about e26/e27, but I still don't understand what might happen. On this page, you wrote that you "recommend exercising caution if used with E27 fixtures." Does it mean that if the bulb work during the day, and not 24/7, it should be fine? And when will you have E27 versions of these?

When E26 and E27 bulbs and fixtures are used interchangeably, the measurement differences in the base may cause arcing to occur at the gap between the electrical connection points. This arcing may cause hazardous electrical hazards to occur, which may damage the products and void the warranty. This is the primary reason why we recommend selecting a bulb that matches the socket used by the fixture. 

Flicker-free T8 LED Tube Lights Recommendations

I have a small motorcycle repair shop and replaced all my fluorescent bulbs in 2017 with Kobi Electric T8-F4-1540-RMV K6P2 LED T8 Rewire 15W 1800lm frosted 4ft tubes. 

The light output was superior to the old tubes, and I was very happy with them until recently. I noticed I was getting eye strain to the point where I started wearing a cap, and then I started getting a "car-sick" feeling shortly after I entered the shop. 

You have many tubes to choose from, and the CENTRIC DAYLIGHT Full Spectrum Flicker-Free T8 LED Tube Light looks to be what I'm looking for, but I wanted to confirm this and am open to other suggestions.

Based on the details provided, it seems that our full-spectrum flicker-free T8 LED Tube Lights would be a great option for reducing the eyestrain in your repair shop. For your industrial installation, we would recommend the 5000K CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free T8 LED Tube Lights. 

In the hopes that it proves to be helpful for your installation planning, please note that the ballasts found in most fluorescent fixtures are not compatible with the power requirements of our LED T8 Tube Lights. 

As such, we would recommend checking the compatibility sheet to ensure functionality. If the ballast within the fixture is not listed, we then recommend rewiring the fixture for a ballast-bypass direct connection so that they operate without issue. When T8 LED Tube Lights are used with incompatible ballasts, they may encounter issues that will void the warranty. 

Flicker-free Bulb Task Light for Art and Animation

Do you have a recommendation for a flicker-free small bulb for an art task light? Would the SuperWarm bulb be helpful to someone who gets migraines from LED?

While not specifically marketed for migraine reduction, we can anecdotally vouch for the benefits that the SUPERWARM™ 1700K Flicker-Free A19 10W LED Bulb offers as evening illumination without causing eye strain. 

If you would like to try this product, please feel free to take advantage of our 30-day return policy. 

Flicker-free Dimmable with a Decor Style Wall Dimmer

Does the below system produces flicker-free output?

FilmGrade™ WHITE LED Strip Lights 

CENTRIC SERIES™ Flicker-Free Dimmable Power Supply 24V

Lutron DVCL-253P-WH = 250W

We can confirm that the 24V 6500K FilmGrade™ WHITE LED Strip Lights (PN3002.65) would offer flicker-free output when paired with the 24V CENTRIC SERIES™ Flicker-Free Dimmable Power Supply for LED Strip (PN3104). 

As a further note, it appears that the referenced Lutron DVCL-253P-WH dimmer would be compatible with the aforementioned products as well. 

Do you have a flicker free lower watt (40W or 25W) replacement bulb?

I have been enjoying the 2700K Centric Home flicker-free bulbs for a couple of years now. They are the best. Are there any plans to produce a 40W or 25W replacement that is flicker-free? My house has loads of fans with 3 light sockets. A 450ish lumen 2700-3000K would be a choice!.

While we are aware of any plans to introduce 25W or 40W equivalent for our standard A19 bulbs, you might alternatively be interested in our 40W equivalent 2700K and 3000K Ultra High 95 CRI A19 5W LED Filament Bulb for Home & Residential. 

These lightbulbs provide the same high CRI of 95+ as our standard A19 lightbulbs, while also outputting a reduced 450 lumens compared to the 800 lumens of the standard lightbulbs. 

In the photometric test report for the 2700K, the flicker index is 0.06. How does that correspond to the output variance by percentage? Would you by chance have any slow motion videos of this bulb?

We can confirm that a 0.06 flicker index denotes a fairly low quantity of flicker. As the flicker index is on a scale from 0.00-1.00, the rate would translate to a 6% flicker percentage. That being said, the difference in output between 0% and 6% is quite visible when capturing slo-mo video on a mobile device. 

Flicker-free light for Enclosed Globe Desk Lamp

Which is the best flicker-free light for an artist's desk lamp?

While we might normally recommend our NorthLux™ 95 CRI E26 A19 LED Bulb for Art & Studio, these products are unfortunately not compatible with fully enclosed fixtures. 

Our standard A19 lightbulbs require a moderate amount of airflow for the dissipation of heat. When the heat is not able to dissipate, the internal hardware can encounter issues, and we do sincerely apologize for any impact this may have on your purchasing plans. 

If the dimension of your desk lamp can accommodate for larger bulbs, such as the BR30 standard, you might alternatively be interested in our NorthLux™ 95 CRI BR30 LED Bulb for Artwork & Studio. 

Do you have 400 lumens flicker-free bulbs?

I found 800 lumens far too bright. I am wondering if you have a flicker-free LED bulb that is ~400 lumens. If not, that would be a great addition. 

Based on the details provided, you might be interested in our 600-lumen SUPERWARM™ 1700K Flicker-Free A19 10W LED Bulbs, or our 450-lumen 2400K Lux24™ Circadian LED Bulbs. 

These products are designed for reduced circadian impact, and we can anecdotally vouch for their benefit as a low-light output product. 

Flicker Free Dimmable Replacement LED Bulbs

One of our clients recently remodeled one of their office spaces and is having problems with flicker. Do you offer a dimmable, flicker-free LED replacement lamp? Have any of your products been tested for compatibility with Douglas Lighting Controls? 

Based on the details provided, it appears that you might be referring to our T8 LED Tube Light products, which are unfortunately not compatible with dimming technology. 

While we might normally recommend our Full Spectrum E26 BR30 LED Bulbs for recessed office lighting as an alternative, these products are not flicker-free. We do sincerely apologize for any impact that the above may have on your purchase planning. 

We continue to explore flicker-free options for our client's office space. Your website states that you have flicker free replacement bulbs. Do you have any other flicker free lighting options? We would like to replace these fixtures with flicker free fixtures. 

Based on the details provided, it appears that the closest match in our catalog would be the LED-Ready T8 Fixtures, which are compatible with our T8 LED Tube Lights. 

I have a couple of questions regarding the Centric Series Flicker Free- Non-Dimmable Power Supply.

Can this power supply be used to drive any led fixture or does it need to be used with your Ultra High CRI White Led strip? Used in combination with the Centric Series Flicker Free Non-Dimmable Power Supply are the Waveform CENTRIC HOME LED Strip Lights flicker-free? If so, could you please supply me with the spec sheet that shows the flicker index and percentage?

We can confirm that the CENTRIC SERIES™ Flicker-Free Dimmable Power Supply for LED Strip is compatible with the LED Strip Lights in our catalog of matching voltage.

We can also confirm that the CENTRIC SERIES™ Flicker-Free Dimmable Power Supply for LED Strip will afford connected LED Strip Lights with flicker-free output. Our available photometric reports can be found on our Photometric Test Reports page, which we hope is helpful for your installation planning.

While some of the tests list the flicker rate, many of those tests were performed using the FilmGrade™ DC Power Supply for LED Strip, which uses similar technology as our CENTRIC SERIES™ Flicker-Free Dimmable Power Supply for LED Strip. 

​

Flicker-free with the Whitest Light Color for Kitchen Can Lighting.

I wanted to order some flicker-free bulbs. Which ones are the whitest light color? I was going to put them in my kitchen in can lighting. 

Based on the details provided, we would recommend the 5000K or 6500K versions of our Full Spectrum E26 BR30 LED Bulbs. These lights are designed for recessed ceiling lighting and offer full spectrum output and a high CRI of 95+. 

If you would like to try this product in the other available color temperatures, please feel free to take advantage of our 30-day return policy if any items are unneeded. Simply reach out, and we will gladly provide a prepaid return label for those products. 

I have to use flicker free ones. Our home person was recommending a flicker free one that you just came out with. Do you know which one that is? 

Based on the details provided, it sounds as though you may be referring to our newly launched CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free A21 15W LED Bulbs.

These flicker-free products are available in the 4000K, 5000K, and 6500K color temperatures, and have a greater light output of 1600 lumens compared to our BR30 and A19 bulbs which offer 800 lumens. 

What does the color temperature number mean? What's the difference between them? 

Generally speaking, 'color temperature' is a measurement of how 'cool' or 'warm' the light being output by a source is. 

For example, residential installations such as living areas and kitchens often benefit from ‘warmer’ color temperatures that are lower on the scale, such as 2700K and 3000K. ​

In comparison, higher color temperatures such as 5000K or 6500K are much ‘cooler’ and mimic natural daylight. These options are often very useful for art production and industrial purposes. 

​As can be noted by the below post, the color temperature options benefit different installation areas due to differences in output. 

Which LED Light Color Temperature Should I Choose?

Flicker-free LED Bulbs for Golf Simulation Bay-focused Lighting

I am looking for non-flicking LED Bulbs that we can use to light golf simulation bay-focused lighting that can be combined to get 12,000 lumens.

While we might normally recommend our NorthLux™ 95 CRI BR30 LED Bulbs for focused lighting, these items unfortunately are not flicker-free and may not be the ideal product for your golf simulator. 

That being said, we have several alternatives that you might be interested in, such as the CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free A21 15W LED Bulb. As this product outputs 1600 lumens per bulb, 7-8 units should be able to meet the 12,000-lumen target. 

It might be helpful to know that previous customers have utilized our LED Strip Lights for golf simulators which integrated high-framerate video capture, such as our FilmGrade™ WHITE LED Strip Lights. These products can offer dimmable flicker-free output, though they would also require dedicated power supplies and additional wiring. 

LED Lighting Recommendation for Winter-time Mood

Which of your products do you recommend for lifting people's mood during the winter time? I would guess it's one of your "Centric Daylight" products. Which color temperature is most popular for this use? 

For human-centric lighting, the most important qualities to consider are flicker-free operation, full-spectrum output, and a high CRI. These features in conjunction create lighting environments that cause less eye fatigue while providing a superior quality of illumination. 

To find which color temperatures are right for your installation, we would recommend reviewing this link. If your installation is residential, we would likely recommend the 2700K or 3000K CENTRIC HOME™ Flicker-Free A19 10W LED Bulb, as those are the most common color points for homes. This product, as is true with any color temperatures available in our A19 products, will feature the aforementioned high-quality output. 

Will flickering be eliminated if we follow the dimming guidelines?

If we follow these guidelines, will flickering be eliminated? It doesn't specifically say so in the article. 

Generally speaking, the ability to provide flicker-free output is determined by both the power supply and LED products. As such, the inclusion of the TRIAC Dimmable Power Supply for LED Strip or FilmGrade™ DC Power Supply for LED Strip of a matching voltage should allow for the flicker-free output of the connected LED Strip Lights. 

High CRI Flicker-free LED Bulbs for Color Matching and Painting

I’m looking for high CRI bulbs for my art studio, and I’m wondering which of your bulbs would be the highest in CRI value for color matching and painting? Also, you have flicker-free bulbs. Is that referring to the actual bulbs flickering or the frequency they work on that stop flickering when filming in slower frames per second?

For art studios, we usually recommend the NorthLux™ 95 CRI E26 A19 LED Bulb for Art & Studio, which is available in the most common color temperature for artwork (5000K and 6500K). As our line of A19 and A21 bulbs utilize the same internal technology, they will all feature the same high CRI of 95+. 

Though not a lightbulb, you may also be interested in our ABSOLUTE SERIES™ LED Flexible Strip. This product features a CRI of 99, making the output virtually indistinguishable from natural daylight. 

Generally speaking, the flicker rate of the LED lightbulbs is calculated by measuring the relative difference in brightness between the maximum and minimum brightness exhibited during a flicker cycle. 

Our flicker-free lightbulbs output light that is constant and uninterrupted, meaning that the fluctuations of brightness are extremely minute (less than 1%). For installations where they are used to illuminate video capture, the lights fluctuate fast enough that there would not be any visible flicker. 

Lighting Recommendation for Painting Studio

I’m interested in purchasing strip or bulb LED tube lights and fixtures from you— something that can light a 400 sq foot space w only a glass garage door as the source of daylight. I hope to find something in the 4500k range, with a high CRI. 

As a primary recommendation, you may be interested in our FilmGrade™ HYBRID LED Strip Lights, which can be calibrated to achieve any color temperature between 3200K and 6500K. 

For an easier installation that would require less wiring, you might be interested in our 4000K or 5000K options, such as the CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free T8 LED Tube Lights, which are designed to be compatible with our LED-Ready T8 Fixtures. 

You might also be interested in our CENTRIC DAYLIGHT™ 95 CRI LED Shop Light Fixture, which is designed for easy installation using the included hook and chain. This integrated fixture has been very popular with artists who utilize garages or other areas as studio spaces, due to the easy installation. 

Are any or all of these lights dimmable?

The products that we shared are unfortunately not dimmable. If dimmable products are preferable, we might alternatively recommend the NorthLux™ 95 CRI BR30 LED Bulb for Artwork & Studio, or an installation that utilizes our LED Strip Lights. 

The LED Strip Lights can be mounted to ceiling or other surfaces by using the Aluminum Channel for LED Flex Strip, and powered using either in-wall power supplies or standard DC power. These products can also be controlled using the majority of standard in-wall dimmers, such as Lutron and others. 

If it proves to be helpful, we have attached a few LayoutMap links below which illustrate LED Strip Light installation options. Each diagram contains installation descriptions, as well as links to each of the recommended connecters and power supplies. 

LayoutMaps™ - LED Strip Light Layout 3001-1A

LayoutMaps™ - LED Strip Light Layout 3001-1B

LayoutMaps™ - LED Strip Light Layout 3002_2B

I’d like to know if you have a tube light structure that’s LED and also dimmable. Do the strips work in the first hanging fixture you sent?

Unfortunately, we do not have any fixtures which are flicker-free and dimmable at this time. We do sincerely apologize for any impact this may have on your purchasing plans. 

As a further note, the LED Shop Light fixtures shared in my initial reply are designed with pre-attached LED lighting products within. As such, no additional lighting products are required for operation. 

Are the LED shop light fixtures flicker free? Space is a total of 400 sq ft. Could the fixture be hung upside down so that it bounces off the ceiling as opposed to being hung as overhead lights?

We can confirm that the LED Shop Light Fixtures are indeed flicker-free.

While these fixtures could be installed in such a fashion that they shine directly upwards for indirect lighting, they are designed to be hung from the included hook and chain. 

Based on the dimensions provided, it appears that the space would be evenly illuminated for artwork creation with 31,451 lumens. This target could be reached with seven of the LED Shop Light fixtures, which each output 4,200 lumens. 

As an alternative, the target could also be reached using 18 units of the T8 LED Tube Light products, which are designed to be compatible with our LED Ready T8 Fixtures. 

Light Recommendation for Office and Residential Lighting

Deciding between the 2700K or 3000K Centric Home and 4000K, 5000K, or 6500K Centric Daylight.

Do Lux24™ Circadian and A19 LED Filament Bulb fit in a regular socket at home? I have three ceiling fans/ lights that need a smaller base. Do any of these fit in the smaller base?

I need good lighting in an office, and a bathroom with a four-bulb fixture. I think I want a softer feeling for my eyes but also to see clearly. However, they can be so bright it is too bright. Not sure about the 2700K or 3000K centric home - It will be warmer, but will it be that healthy full-spectrum? Will it be bright enough to help me see everything and think?

Would the Lux24™ Circadian LED Bulb - 2400K works in an office? 

My bedroom has those Full-spectrum solutions/ blue Max brand candelabra lights in the ceiling fan. Most nights I avoid even turning on the light in the bedroom as I get into bed- because they are so bright. I do not have a bedside lamp. If those bulbs would fit in the ceiling fan- that takes the smaller bulbs, I would- but these don't fit into the smaller base - right?

The A19 bulbs referenced utilize the standard E26 base, which is a very common standard for home fixtures, such as lamps and recessed lighting.

The base that you are likely referring to is known as an ‘E12 candelabra base’, which we currently do not have available in our catalog. 

For offices, we recommend the 4000K color temperature. You might specifically be interested in the 4000K CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free A19 10W LED Bulb for your work area. This color temperature is cooler than the warmer 2700K options, though they will both offer full spectrum output. 

For bathroom fixtures, we would likely recommend the 3000K Ultra High 95 CRI A19 5W LED Filament Bulb for Home & Residential, which is designed to be suitable for damp locations and can offer full-spectrum light output. 

As previously noted, the 4000K color temperature is the most common option for offices and workspaces. The 2400K is more commonly used for evening light, rather than productivity due to the very ‘warm color' output. As such, we would likely recommend the aforementioned 4000K CENTRIC DAYLIGHT™ A19 lightbulb. 

We can confirm that the 2400K Lux24 A19 lights would not be compatible with the E12 candelabra base fixture. 

Flicker-free T8 LED Tube Lights

I'm trying to figure out a few lighting questions about how to get non-flicker LEDs- tube lights, ceiling fixtures, and vanity. I can't tell from your tube lights if they are non-flickers. 

We are happy to confirm that all of the T8 LED Tube Lights products in our catalog offer flicker-free light output. 

Can you explain to me how to connect the tube lights without a fluorescent ballast, for them to be flicker-free? They are not on a dimmer.

My fixtures have slots for 4 tubes, but I'd like to only use 2 tube lights in each. The fixture allows for a very diffuse light so having fewer tubes just means less brightness, not weird gaps. Is that possible with your tube lights?

Do you sell T3, 90+ CRI, and flicker-free bulbs? I couldn't find any on your site. If you don't, can you point me to somewhere that does?

For the ceiling lights, I'm looking for E26 dimmable and flicker-free, 95 CRI. Some 2700, some 3000, some 4000

I'm considering this integrated LED fan&light fixture that doesn't give me specs on the integrated led, so I'm wary. It's the first time I've considered a fixture like this, and it looks neat but I don't want to end up with flicker and low CRI, but I have no way of telling. Are there any fixture makers of integrated LEDs that you know of that incorporate high CRI and are flicker-free?

We have prepared a set of instructions for bypassing the ballasts within fluorescent fixtures, which can be found within the T8 LED Tube Light installation guide. 

Unfortunately, we do not currently sell T3 light products, and we do apologize for any impact this might have on your purchase planning. That being said, a few options appear to be available from Home Depot and other marketplaces, based on my brief search. 

Based on the fixture description provided, it appears that our T8 LED tube Lights should function properly within the fixture, so long as the ballast has been bypassed if necessary. Most fluorescent fixtures that we are familiar with allow for operation even if not all T8 spaces are utilized. 

For your ceiling lights, we would likely recommend our CENTRIC HOME™ Flicker-Free A19 10W LED Bulbs and CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free A19 10W LED Bulbs, which are available in the 2700K, 3000K, and 4000K color temperature options. 

We are not aware of any specialty lighting fixture makers who specialize in flicker-free high CRI light output. Those types of fixtures are generally outside of our expertise, and we do apologize. 

Flicker-free LED Flood Light Style LED Bulb

Do you have a non-flicker 50 or 60-watt flood light style bulb that would work with a dimmer switch?

While they are not flicker-free, we might recommend our 60W-equivalent Ultra High 95 CRI E26 BR30 LED Bulbs or the Full Spectrum E26 BR30 LED Bulbs, which offer high CRI output and are designed to be compatible with dimmers. 

High CRI E27 flicker-free LED Bulb

I am looking for a bulb lamp E27, 220V (Europe) with a high CRI value and flicker-free. 3000K or adjustable between 2700-4000K. The light intensity must be dimmable. I prefer a filament bulb. If not possible, an ordinary bulb can also be used. Do you have something to offer, please? I saw on your website article: 4007.30, FilmGrade Flicker-Free A19 Led Bulb. But this is apparently not dimmable in light intensity. Do you have an alternative?

Based on the details provided, the closest match in our catalog would be the 3000K E27 FilmGrade™ Flicker-Free A19 LED Bulb referenced, though we can confirm that this product is not dimmable nor able to offer dim-to-warm adjustable output. 

While we do offer the Ultra High 95 CRI A19 5W LED Filament Bulbs, these products are not designed for E27 bases and are not compatible with global voltage standards. We apologize!

E14 and E27 Flicker-free LED Lights

I have a migraine and need flicker-free LED light bulbs (25 W and 60 W (I do not know how much that is in LED), and I need them in E14 and E27). I also need flicker-free fluorescent lamps (LED). I need a yellow light (not white or white-blue). Which of your products do you think is the best for me? I live in Sweden, how much is the shipping for just a few of your products for me to test before I buy more?

While we do not have E14 bulbs, you may alternatively be interested in our 60W-equivalent (800 lumens) E27 CENTRIC HOME™ Flicker-Free A19 10W LED Bulbs and CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free A19 10W LED Bulbs. These products are compatible with global voltage standards, provide flicker-free light output, and offer a high CRI of 95+. ​

While our T8 LED Tube Lights and LED Ready T8 Fixtures are not compatible with global voltage, we might alternatively recommend our CENTRIC DAYLIGHT™ 95 CRI T5 LED Linear Light Fixtures. These fixtures are compatible with 120 – 277V AC 50-60 Hz, but will likely need a wall plug adapter for use in Sweden. 

Full Spectrum Lighting that Mimics Natural Sunlight

I am essentially a shut-in right now with limited exposure to natural sunlight due to small windows in my mobile home. I am also sensitive to strobe lights. My pets and I all need the health benefits of natural sunlight. Can you recommend a bulb that I can use throughout my house that will provide a lot of light that will help our bodies, but not risk triggering seizures? 

We are proud to offer many human-centric lightbulb products that offer full-spectrum, flicker-free light which is designed to reduce eye strain.

Based on the details you provided, we would likely recommend our CENTRIC HOME™ Flicker-Free LED Bulbs in A19 or A21 versions, which are available in the 2700K and 3000K color temperatures most commonly used for residential installations. 

Further, it might be helpful to know that the primary difference between the A19 and A21 versions is the light output (800 vs 1600 lumens) and size, where the A21 is slightly larger.

Do you have a flicker-free color LED available?

Are there any flicker-free color LEDs available? I purchased some Philips Hue bulbs only to notice that they do flicker.

While we can confirm that we do not sell flicker-free color lightbulbs, we do sell the FilmGrade™ FiveSpect 5-in-1 LED Strip Lights, which are flicker-free when paired with a power supply such as the TRIAC Dimmable Power Supply for LED Strip. 

Table Tennis Court Lighting Solution

What would you recommend to light a pro-level table tennis court? It is 20ft X 40ft with a 20ft ceiling height. Optimum clear resolution of the ball is paramount. It is traveling 40 to as much as 70 miles per hour and struck every 1/3 to 1/2 second. 

Based on the details provided, we would recommend one of our flicker-free products for the uniform lighting of the ball and court during play and video capture. 

If you would like to let us know more details about the preferred lighting fixtures for your court, as well as let us know whether the court is planned to be indoors or outdoors, we would be happy to provide you with a few product recommendations. 

In the interim, our Lumen Estimation Calculator might be helpful for your installation planning. 

Will your T8 tubes operate in a single-ended fixture?

We are happy to confirm that our T8 LED Tube Lights can be installed within single-ended and double-ended fixtures. That said, we do encourage customers to ensure that the fixtures contain compatible ballasts to ensure full functionality, though the fixtures can also be installed via ballast bypass.

​As an alternative, you may also be interested in our recently launched LED-ready T8 Tube Light Fixtures. These fixtures are compatible with our T8 LED lights and do not require any rewiring or ballast considerations. 

We have attached a link to the product installation guide below, which includes details regards each installation method.

T8 LED Tube Light Installation Guide

Natural LED light for Light Hyper-sensitivity

I have neurological vision damage and hyper-sensitivity to light or photophobia. The best light for me is a mix of natural light and a little fluorescent. I was wondering if you could recommend one of your bulb types for this type of condition.

For the reduction of eye strain, we usually recommend our flicker-free, high CRI products, such as the CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free A19 10W LED Bulb. This product is also available in the 4000K color temperature, which is often recommended for office use. 

Flicker-free LED Light in E27 Fitting for Physiotherapy and Yoga Basement Room

I'm looking for basic lighting for a basement room that has been set up as a practice room for physiotherapy and yoga. The light quality is important here because there is no daylight and the physiotherapists spend many hours in this room. Can your lamps be used in a European electricity network of 40Hz and an E27 fitting? The following features are important: - Sphere or bulb shape in retro look with filaments or opal glass. - Light color 3000K or adjustable between 2700-4000K (if flicker free) - CRI of minimum 90. 

Unfortunately, we do not have any products available in our catalog that directly match the details provided in your email. 

The closest matches available would be the E27 CENTRIC HOME™ Flicker-Free A19 10W LED Bulb or E27 CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free A19 10W LED Bulb, though neither are able to offer adjustable color temperatures.

Do you have a dimmable and flicker-free LED bulb?

Are these Ultra High 95 CRI A19 5W LED Filament Bulbs for Home & Residential flicker-Free? If not, do you have dimmable lightbulbs? I have the strips and also non-dimmable and flicker-free, but I have a couple of lamps that are on dimmers. 

Unfortunately, we can confirm that our A19 filament bulbs are not flicker-free. According to the latest photometric report, this product has a flicker percentage of 19.7%. 

We currently do not have any products available which are both dimmable and flicker-free. We apologize!

Full spectrum and flicker-free LED Bulbs

Which are the best flicker-free full spectrums that are easy on the eyes?

For flicker-free light that is less strenuous on the eyes, we would recommend the CENTRIC HOME™ Flicker-Free A19 10W LED Bulbs. These lightbulbs are available in the common color temperatures for home installations and produce high CRI flicker-free light output. 

If it proves to be helpful, we have also attached a color temperature selection guide below. 

Which LED Light Color Temperature Should I Choose?

Flicker-Free LED Lighting for Golf Simulator Swing Optix Cameras (Uneekor)

I am purchasing Swing Optix cameras from Uneekor (www.uneekor.com). Their cameras are at 165 frames/sec. They recommended your company for lighting. My question is what type of overhead lighting would you recommend? I am currently building a new home and am installing a golf simulator in the basement with a 10-foot ceiling. From what I have seen, their lighting is above, behind, and at the side of the golfer. The question how much lighting do I need given your experience? 

Based on the details provided, we would recommend the 5600K FilmGrade™ WHITE LED Strip Lights, which are designed with video capture and high CRI in mind. 

By inputting the dimension of the Golf Simulator space into our Lumen Estimation Calculator, including the ten-foot ceiling height, you will be provided with a recommended quantity of products to use in order to achieve optimal illumination. For example, you may only need 9 feet of the LED strip light products, which produce 450 lumens per foot, in order to illuminate a 10x10x10' area with 3,821 lumens. 

​For your installation planning, you might also find value in our Layout Maps, which provide configuration instructions, as well as links to the recommended connectors and power supplies. For mounting the product, you may also be interested in our aluminum channel products. 

I wanted to clarify the space I am illuminating. The lighting is needed to illuminate a golfer swinging a club. There will be a camera directly behind the golfer and another camera looking straight at the golfer. The high speed cameras (145 frames/sec) are used for swing analysis.

I wanted to provide an overhead layout of the golf simulator (attached). I am showing the 5700K Lumen Strip lighting, as you recommended. 

I have a swing camera directly behind the hitting zone (7 ft) and another camera perpendicular to the golfer under the 48" TV. The projector will not be on with filming the swing. 

Is this too much, too little or just right?  

Based on our review, it appears that the illumination area is roughly 4 x 8 feet, and would utilize 16 feet of LED strip lights, which can be accomplished with one divided reel of the FilmGrade™ WHITE LED Strip Lights. 

For other installations that size, we would usually recommend ~2,599 lumens, which could be accomplished with only 6 feet of LED strip lights outputting 450 lumens per foot. By comparison, the mockup installation of 16 feet would output roughly 7200 lumens.

As the installation is designed for filming, having evenly-spaced, inward-directed light from the three sides does appear to be very beneficial, which prevents us from immediately recommending the utilization of fewer segments given the option for dimmer adjustment. 

​There is also the additional consideration that the surrounding area could benefit from additional illumination (via indirect light) in ways that our lumen estimation calculator tool, shared below, would not take into account. By increasing the illumination area dimensions to 7 x 12 feet to account for the immediate surrounding area, we quickly reach the maximum output of one reel (7380 lumens).

Lumen Estimation Calculator

Considering the above, it appears that one reel segmented into three lengths would be sufficient. That said, we would recommend performing pre-installation testing to ensure that the area is evenly illuminated for your video capture. Even if the combined output is too intense, the individual dimmers could easily be used to adjust the output to your preference for video capture. 

I was thinking about using 3 of the 3 m channels that bracket the hitting mat as shown in the layout drawing. These will be at 10 ft high, so I assume using the flat aluminum panels would be the preferred option. All three would be on dimmers.

Based on the layout provided, it does appear that the flat channels would be more useful than the corner channels for your installation. 

​Generally speaking, the corner channels are used for ceiling lines and wall washing, where the flat would alternatively allow for a broader diffusion of light being cast downward from the ceiling. 

Is it possible to have the dimmer switch incorporated into a regular wall gang box? I assume the dimmer switch is the on/off switch as well?

We are happy to confirm that when the lights are powered using an in-wall power supply such as our TRIAC Dimmable Power Supply, they are compatible with most wall dimmers. This includes compatibility with smart home dimmer systems such as Lutron Caseta, which are listed in the below compatibility guide.

In the case of the in-line FilmGrade Dimmer we can confirm that the dimmer also operates as primary power control, though this is not necessarily true when the product is connected to a wall dimmer. 

For your layout planning, we have also provided a configuration link below for the installation of connected LED strip light segments powered by a TRIAC power supply, controlled by a wall dimmer. For connecting the FilmGrade LED strip lights to the TRIAC power supply, you will also need connecters to convert the DC barrel jack plug to wires. 

Compatible Dimmer List

LayoutMaps™ - LED Strip Light Layout 3001-1B

Dimmable and Flicker-free Lighting for Video/Photo Studio

I'm a videographer and I'm in the process of helping our contractor to convert an existing office space into several small video/photo studios as well as multi-person editing suite. 

Our needs are for the studio lighting to be daylight balanced (ideally 5600K), dimmable, and flicker free. 

1) Would this power supply allow flicker-free dimming using a standard wall dimmer from your dimmer compatibility list (e.g. LUTRON SCL-153PR-WH, LUTRON DVCL-153PR-WH) or would it require your FilmGrade Flicker-Free LED Dimmer?

2) Are your aluminum channels suitable for being suspended from a ceiling rather than directly mounted to a flat surface? If so, do you have any guidance on how that might be done? If not, are there any fixtures that you could recommend that are compatible to be fitted with your LED strips?

3) Finally, do you have any suggestions for how LED strips might be incorporated into a drop ceiling? 

We are happy to confirm that both of the referenced Lutron models have been tested as compatible with our power supplies. For a full list of compatible dimmers, please reference the document linked below. 

We can also confirm that we have not had any experience with suspending the aluminum channels from the ceiling as a lighting installation before. As such, we unfortunately might not have any helpful advice for this installation type. 

​As an alternative, you may be interested to know that our T8 LED tube lights feature the same LED technology as the LED strip lights. Further, we are introducing a line of LED-ready T8 fixtures that are designed for office and workspace installations.

We have also provided a link below to our Lumen Estimation Calculator tool, which can be helpful for determining the lumen requirements for different spaces. 

Lumen Estimation Calculator

Compatible Dimmer List for CENTRIC SERIES LED Power Supply

Are Lux24 and Ultra High A19 5W LED Filament Bulb available in E27 base?

Are Lux24 and Ultra High 95 CRI A19 5W LED Filament Bulb available in E27 base? What is the difference between CentricHome 3000K and FilmGrade 3000K? What is the M/P ratio for all CentricHome, FilmGrade, and Ultra High 95 CRI A19 5W LED Filament Bulbs?

I would also like to know if there is a much smaller output and size of power supply for the LED strip available. I'm looking to modify my R7s wall lamp to use LED strips and the power supply must be small enough to fit at the back space of the housing.

We can confirm that the Lux24 and A19 Filament bulbs are not currently available with the E27 base. We apologize!

Also, the 3000K CENTRIC HOME™ Full Spectrum Flicker-Free A19 10W LED Bulb and the 3000K FilmGrade™ Flicker-Free A19 LED Bulb are identical products that are provided with unique landing pages for marketing purposes. 

Further, the M/P ratios for the 2700K and 3000K are 0.49 and 0.55, respectively.

Lastly, we do not have any smaller power supplies, but third-party power supplies can certainly be used as long as they meet the minimum power capacity needs of the LED strip connection. Please see below for our online calculator which you may find helpful:

https://store.waveformlighting.com/pages/led-strip-power-supply-calculator-requirements

For LED strips, is flicker-free operation determined by the strips themselves or by the power supply? If the power supply is, what should I look out for to go with your LED strips for flicker-free operation?

We can confirm that the flicker-free functionality is a feature defined by the power supply, rather than by the LED strip light products. 

In searching for a third-party power supply that would allow for flicker-free operation, we would recommend comparing the power output against the details within our own power supply specification sheet. So long as the output is compatible, we would assume that the LED strip lights would be able to operate flicker-free. 

FilmGrade™ DC Power Supply for LED Strip Specification Sheet

Do you have any dimmable flicker-free bulbs?

I came across your website in my search for flicker-free bulbs. I currently have Philips Hue bulbs throughout my home, and I am becoming more frustrated at their terrible flicker (primarily because it makes it impossible to record videos at 24fps, but also I suspect some of my headaches are caused by them.) I see you have the Centric Home bulbs (4005.27), which are 60W equivalent and are completely flicker-free. I also see you have Filament bulbs (4002.27) which are 40W equivalent and dimmable, however, they do not mention flicker-free at all, and looking at their Photometric Report I see a flicker percentage of nearly 20% - I don't know if this is high or low, but it certainly isn't 0. So I guess I have 2 questions: (1) Do you have any dimmable flicker-free bulbs, or will there be any coming to market soon? (2) If not, do you have any non-dimmable flicker-free bulbs that are 40W equivalent? 

We currently do not have any A19 bulbs which are both dimmable and flicker-free, though we do hope to introduce such a product in the future. 

The closest match for a 40W equivalent would be the Lux24 A19 filament bulb, though it is not flicker-free as you previously mentioned. 

That said, please feel free to take advantage of our 30-day return policy if you would like to try out our A19 filament bulbs and other products. 

As an alternative for your video recording, you may also be interested in our line of LED strip light products. Though the configurations are more involved than a typical light fixture, these products can provide both dimming and flicker-free output alongside a high CRI of 95+. In some instances, the CRI of our LED strip lights is as high as 99. These lights and power supplies are also designed to be compatible with smart home dimming systems, such as Lutron Caseta. 

Flicker Rate of Ultra High 95 CRI A19 5W LED Filament Bulb

I'm wondering if 4002.30.6P has any flicker to it, or is truly flicker-free. I noticed some of your bulbs are specifically mentioned as flicker-free, but not this one. 

We can confirm that the 3000K Ultra High 95 CRI A19 5W LED Filament Bulb for Home & Residential has a flicker rate of 21.4%.

In case it proves to be helpful with any future purchases, the flicker rates of our products can be found within the photometric reports listed on the product pages. I have attached the report for the 3000K version of the above product below, for your review.

PN4002.30 Photometric Report

Flicker Rate of T8 LED Tube Light

Do you have the "Flicker % or Flicker Index" spec, or some other flicker spec, for "CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free T8 LED Tube Light" 4000K .. similar to what's listed for your A19 flicker free bulbs? 

We are happy to confirm that the T8 LED tube lights in our catalog offer a <1% flicker rate, and a flicker index of 0.00 when connected to a fixture that utilizes a compatible ballast or utilizing a direct-wire connection.

Does your A19 5W LED Filament Bulb have low flicker?

I noticed this bulb, unlike the rest, doesn't mention that it is low-flicker: Ultra High 95 CRI A19 5W LED Filament Bulb for Home & Residential 4002.27 Is this, too, an equally low-flicker bulb?

We can confirm that the Ultra High 95 CRI A19 5W LED Filament Bulb for Home & Residential product is not flicker-free as our other A19 bulbs are, and has a flicker rate of 29%.

For future reference, the flicker rates of our products can be found within the photometric reports on the respective pages. I have attached a link to this product’s photometric report below, for your review.

Ultra-High 95 CRI A19 5W LED Filament Bulb for Home & Residential Photometric Report

If the flicker-free functionality is preferred for the installation, then we would alternatively recommend any of our other A19 LED bulbs such as the CENTRIC HOME™ Full Spectrum Flicker-Free A19 10W LED Bulb​ which is available in the same color temperatures as the filament-style bulb referenced. 

Flicker-Free T8 LED Tube Light

I am trying to use these lights for my film studio, where I shoot high-speed video at around 1000 frames per second. Would this work for this type of application? Can I use a standard LED T8 light fixture for these bulbs and still get a "flicker-free effect?"What is meant by "Flicker-free" when connected without a fluorescent ballast?

We are happy to confirm that our flicker-free lights, such as the T8 LED tube lights, can refresh at a higher rate than would be noticeable in a 1000 fps capture.

Generally speaking, most older fluorescent tube light fixtures utilized a ballast within them to regulate the power being supplied to the lights. As this is no longer necessary for LED products such as ours that contain internal transformers, some older ballasts are incompatible and can cause performance issues such as flickering.

As such, before ordering, it may be worth ensuring that the ballast within your fixture is within the compatibility list. If they are not, it might be helpful to know that we are looking forward to releasing our own line of LED-Ready tube light fixtures within the next month or so. 

​Additionally, fixtures with ballasts can still be used without lights when a ballast-bypass installation type is used, which is illustrated within the below product installation guide.

 So if I were to use my own lighting fixture (a none waveform fixture) for the "Flicker-Free T8 LED Tube Light" I would need to make sure the ballast in the fixture is on the compatibility list.

That's correct! Though it may be helpful to know that the fixtures linked are integrated and do not require any lights to be installed. These are different from the upcoming line of LED-Ready T8 tube light fixtures, which can utilize our T8 LED tube lights.

Can you recommend any lighting fixture you know has the proper ballast for the "Flicker-Free T8 LED Tube Light?"

Unfortunately, we do not have any specific fixture models that we could recommend at this time. We apologize! 

If I wanted to get the Flicker-Free A19 10W LED Bulb, could I use a standard e26 or e27 socket and still remain flicker-free?

We are happy to confirm that the internal hardware of the A19 bulbs will allow for flicker-free functionality when installed within a matching E26 or E27 base. We have also attached a blog post below which describes the hardware and voltage differences between the two sockets, which may prove to be useful.

E26 vs E27 Bulbs - Interchangeable? Not Necessarily!: https://www.waveformlighting.com/home-residential/e26-vs-e27-bulbs-are-they-interchangeable

Do the " Flicker-Free T8 LED Tube Lights" have single-ended or double-ended power? Can they operate in a single and double lamp fixture configuration?

We are happy to confirm that our T8 LED tube lights can be installed and powered using either single or double-ended power configuration.

As such, please feel free to utilize them within compatible fixtures that utilize either of the above "UL Type B" installation types. The available configurations for that type can be found in the installation guide, which I have provided a link to below.

Flicker-Free T8 LED Tube Installation Guide

What is the difference between the NorthLux™ 95 CRI T5 LED Linear Light Fixture and the D50 5000K T5 LED Linear Light Fixture for Color Matching?

We can confirm that the two products are identical, though they are provided with unique landing pages for marketing purposes. This can be noted by the shared part number, though I do apologize for any confusion this may have caused.

Are both of these lights flicker-free? What is the PWM frequency of these LEDs?

Yes! Both products offer a <1% flicker rate and a 20kHz frequency.

If they are flicker-free, can I use third-party daisy chain cords, accessories, extension cords, etc., and still get a flicker-free effect?

Yes, the flicker-free functionality should be preserved when utilizing a compatible third-party C8 plug cable.

How many units can be daisy-chained into a single outlet?

A total of 70 feet (21 meters) of the linear light fixtures can be safely daisy-chained together.

What do you mean by a <1% flicker rate? At 20kHz frequency, would that mean I can shoot video at a maximum of 40,000 frames per second before seeing the flicker?  

We typically say that our products have a flicker percentage of less than one percent in marketing materials, though the actual flicker rate of our flicker-free products is 0%, with a 0.00 flicker index when tested.

We have attached a link to the spectrum test report for one of our flicker-free A19 bulbs below, for your reference. Upon review of the last page, you will see an example of our test data showing a 0% flicker rate. You will also see that the flicker index is 0.00, as there is an extremely minute variability between the maximum and minimum light output per hertz cycle. As such, we would not expect any visible flicker at that capture rate. 

​

LED Tube Light for Slow Motion Video

We are moving into a 30k+ sq ft facility here over the next few months and are looking to outfit the space with "flicker-free" LED tube lights. We are a baseball development company that utilizes high-speed video regularly and in a perfect world. We would be able to shoot 1000 fps anywhere in the facility, given that the lighting was outfitted correctly. Would love to hear your thoughts on the matter. 

We are happy to confirm that our flicker-free T8 LED tube light products operate with a refresh rate that is much higher than the referenced 1000 frames per second capture rate for filming. As such, they could be a great match for your installation purposes.

That being said, it would be worth confirming whether our T8 LED tube light products are compatible with the preferred lighting fixture ballasts to be installed in the new space to ensure optimal functionality prior to ordering.

If the ballast within the fixtures is not on the compatibility list, we would then recommend either identifying an alternative compatible fixture or looking into the available ballast-bypass installation methods listed in the product installation guide.

​In the interim, you may be interested in our CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free T8 LED Tube Lights, which are available in both 5000K and 6500K, which are commonly recommended for industrial settings.

Our main concern is outfitting our space with true "flicker-free" lighting systems to ensure 1000 FPS comes out in the highest quality possible for content purposes.

If you can make some recommendations accordingly in regards to outfitting our whole space with this type of light would be greatly appreciated and a general quote for the bulbs as well. In addition what would be the most compatible fixture to ensure proper performance of the lighting system.

Upon review, our primary recommendation will be to ensure that the fixtures contain compatible ballasts.

If the ballasts are incompatible, then they may experience flickering, sub-optimal operation, or failure to operate. As such, we strongly recommend comparing the ballasts within those ballasts with the compatibility guide. 

It appears that you are currently utilizing a series of 6500K color temperature tube lights. As such, we would suggest our 6500K CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free T8 LED Tube Light product.

We also recommend comparing the lumen output of the preexisting fluorescent tubes to ours in order to ensure that the current quantity of light fixtures emitting light at that output level would be sufficient for any industrial or capture purposes. If our T8 lights emit fewer lumens than the existing fixtures, we would then suggest installing additional fixtures.

Finally, we also recommend getting in touch with a local lighting designer in order to ensure that the entire building and work areas are sufficiently and evenly illuminated by the T8 lights.

Does your LED Strip Lights flicker-free?

I was told that only your FilmGrade LED strips are flicker-free and that the 2700 Centric Home strip has flicker, but I can find no info in either description. Are they different in this way? 

We are happy to confirm that all of our LED strip light models are flicker-free when paired with a flicker-free power supply, such as the TRIAC Dimmable Power Supply for LED Strip product.

This is due to the fact that the power supply treats the power being provided to the lights in such a way that the refresh rate (the rate at which the lights turn on and off) occurs at a rapid enough pace that our eyes are unable to notice it.

As such, please feel free to utilize any of our LED strip lights for your flicker-free installations.

Do you have a ceiling dimmable light that could adjust color temperature/brightness level?

Do you have a kind of ceiling dimmable light, that could adjust color temperature/brightness level, with a remote, for residential, bedrooms? I am very sensitive even to high PWM flicker frequency, do you know how many "kHz" frequencies your product works on different brightness settings?

Though we unfortunately do have any fixtures that would be capable of all referenced features, you might be interested in either the FilmGrade™ FiveSpect 5-in-1 LED Strip Lights which can emit any visible spectrum, or our FilmGrade™ HYBRID LED Strip Lights which can be tuned between tungsten and daylight color temperature output.

​Regarding the flicker sensitivity, you may also be interested in the FilmGrade™ DMX LED Dimmer & Decoder with 5-Channel Output, which is capable of PWM frequency adjustment between 500Hz and 30 kHz. Additionally, it might be helpful to know that this product can be used with the above Hybrid and FiveSpect products.

We recommend utilizing a third-party controller for adjusting the output of these products, as well as a mounting channel such as the Aluminum Channel for LED Flex Strips. Further, please note that these products would likely require more manual configuration than another pre-built fixture option might allow for.

Could you tell me an average competitor product, that claims to be flicker-free, how many kHz are use in their product? 

Though we're not aware of the exact flicker rate of the products offered by our competitors, we can confirm that many third-party LED products can have a flicker rate between 15-75%, which is quite high. 

​We have provided a link to an instructional article from our website about flicker-free technology, which we hope proves to be useful.

Flicker-Free LED Lighting: https://www.waveformlighting.com/flicker-free-led-lighting

What is the flicker rate of the Lux24 Circadian bulb?

I purchase a pair of the Lux circadian bulbs a while back. What is the amount of flicker in those bulbs? I am interested in purchasing flicker-free lights.

We can confirm that the Lux24™ Circadian LED Bulb has a flicker rate of 29%. As such, they are unfortunately not flicker-free.

For flicker-free performance, we generally recommend our other A19 bulbs, such as the CENTRIC HOME™ Full Spectrum Flicker-Free A19 10W LED Bulb. 

Which bulb do you suggest is most similar to the Lux24 in terms of impact on sleep and is fully flicker-free?

Though the filament bulbs in our catalog are unfortunately not flicker-free, the next closest product match would be the 2700K CENTRIC HOME™ Full Spectrum Flicker-Free A19 10W LED Bulb. This item is flicker-free and available in the warm 2700K option, which is closer to the 2400K output available in our Lux24 product than our other A19 bulbs.

ABSOLUTE SERIES™ LED Linear Modules Flicker Rate

I was looking at the photometric reports on the ABSOLUTE SERIES™ LED Linear Modules and I had a few questions. 

The 6500k reports a flicker rate of 3Hz and the 5000k reports 115Hz. Is the 3Hz accurate? In looking at the flicker index I see it reported as 0.00. In my understanding the index is calculated as the area above the mean divided by the total area, I do not see how this could be 0, is the number accurate, or is my understanding of the calculation off? 

Though the flicker rate is indeed noted within the photometric reports, please note that the flicker-free feature is the result of the connected power supply rather than a result of the product’s bespoke performance. 

​In this instance, the module was connected to one of our TRIAC Dimmable Power Supply for LED Strip products. This flicker rate would change if the module was connected to a different power supply that was not flicker-free.

We can confirm that the flicker index is on a scale from 0-1.0, and is measured by the area above mean divided by total area. Further, the flicker index is a measure of the cyclic variation accounting for the waveform shape. As there is no altitude variation between the maximum value and the minimum value within the frame of one optical cycle, the flicker index of this product is 0.00.

By my reading, the Hz denotes that during 3 Hz (or 115 Hz) of refresh time, a minuscule change occurred that was negligible enough to not cause any adjustment to the overall flicker percentage or flicker index.

Flicker-free LED Strip Lighting Options Preventing Migraine

I am highly sensitive to flicker - migraine caused by flicker eliminates short-term memory so I can’t work along with other debilitating symptoms. Would you please talk to me about some of the flicker-free options described on your site? I’d like to please learn more about the technical differences between some of the options. I need something that eliminates both brightness flicker and color flicker as much as possible. 

We can confirm that the TRIAC Dimmable Power Supply for LED Strip can provide connected lights with flicker-free functionality. The TRIAC dimmable power supply has also been tested with the following wall dimmer products.

Dimmer Compatibility List: https://www.waveformlighting.com/files/DC_3093.pdf

We can also confirm that the FilmGrade™ DMX LED Dimmer & Decoder with 5-Channel Output product can adjust the PWM frequency of connected light products between 500 Hz and 30 kHz.

You may also be interested to know that we are planning to release T8 Light Fixtures for use in office installations, which are designed to be compatible with our line of flicker-free, full-spectrum T8 LED tube light products, such as the CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free T8 LED Tube Lights. 

​The benefit offered by these over-integrated fixtures is that if the T8 product encounters an outage within the 50,000 hours lifetime (5-year warranty), they can be easily replaced. Contrastingly, integrated features usually need to be entirely replaced.

Flicker Rating for Ultra High 95 CRI A19 5W LED Filament Bulb

I wanted to clarify what the flicker rating was for these bulbs. Ultra High 95 CRI A19 5W LED Filament Bulb for Home & Residential I wanted to get the flicker-free ones, but I live in California. 

We're happy to confirm that the flicker-free A19 products have been recently improved and can be shipped to California. 

The flicker rating can be found on the photometric reports below.

2400K Photometric Report

2700K Photometric Report

Further, you may want to consider the CENTRIC HOME Flicker-Free A19 10W LED Bulb available on 2700K and 3000K. These bulbs are flicker-free. 

Flicker-free and Dimmable LED Bulb for Poultry Farm

I am having an issue right now with low-quality LED light. The chickens are getting extremely nervous because of the flickering. I have tried many lights, and have changed my light controller with specific LED controllers. The chickens are so nervous that I am starting to see some mortality because of that. I need a 100% dimmable, flickering-free LED bulb. Is there any recommendation you could give me?

Although we do not currently have any bulb products which are both flicker-free and dimmable, we do wonder if an installation utilizing our high-CRI LED strip light products is an option for your poultry farm.

Our LED strip light products can be both flicker-free when paired with our DC-plug or in-wall power supplies, and are also compatible with dimmers. These products are also available in a wide variety of options, including the 99CRI ABSOLUTE SERIES™ LED Flexible Strip product, which is designed to closely simulate the light output of natural daylight.

​Though the installation would likely be slightly more involved than one utilizing light bulbs, I would be more than happy to provide you with more information and configuration resources in the event that this was of interest.

What is the flicker-rate of the LED Shop Light Fixtures?

I am looking to replace my shop light fixtures as my current ones have a PWM flicker that is very noticeable when working on moving parts. What frequency are your shop lights? Also, I am wanting to put some lighting under the shelves at our workbenches and wanted to use your centric daylight series. Other than the power supply, what else would I need to mount them to the bottom of a shelf? Do I need one of your aluminum strips?

The LED Shop Light Fixtures will offer a <1% flicker rate. 

Though the aluminum channels are not required for LED strip light installation, the housing can be beneficial for many installations where a diffusor is preferred. Further, as the CENTRIC DAYLIGHT™ LED Strip Lights for Commercial & Retail product contains wires at the ends of the reel for connection, we would recommend the Female DC Barrel Jack Plug Adapter or another third-party adapter for connection to the power supply.

If you would like to adjust the output intensity, the FilmGrade™ Flicker-Free LED Dimmer (currently back-ordered and expected to be available on April 12th) can be connected between the LED strips and power supply, as well. The below guides from our website illustrate the centric daylight product configuration methods, which I hope are useful for your planning stages.

LayoutMaps™ - LED Strip Light Layout 3002_2D

LayoutMaps™ - LED Strip Light Layout 3001-1B

Color Accuracy Bulb for Building a Lightbox or Photo Booth

I was interested in a few of the products you guys sell and was wondering do you guys have a flicker-free high CRI bulb with a color temp of 6500k. I went through the bulbs and am still confused about all these options. I was looking at 4005.D65 4005.65, and some of the other NorthLux and centric series and wasn't sure what would be best for color accuracy, I am building a lightbox/ photo booth for checking the color accuracy of plastic samples.

Based on the details provided, I would recommend the 6500K (D65) NorthLux™ 95 CRI E26 A19 LED Bulb for Art & Studio products, which I can confirm as being flicker-free. 

​This product is also designed to conform to the ISO D65 standard, which is beneficial for installations that require an extremely low variability in light output.

If you would like to purchase a few of the options previously mentioned to make direct product comparisons in your space, please feel free to take advantage of our 30-day return policy. Simply reach out to let us know which items you would like to return, and we will quickly issue a prepaid return label.

Is the NorthLux™ 95 CRI BR30 LED Bulb also flicker-free? And are the specification and other product documents available to look at?

The NorthLux™ 95 CRI BR30 LED Bulb for Artwork & Studio, as well as our other BR30 bulbs, share a 6% flicker rate. Though not totally flicker-free as our A19 bulbs family of products are, it does offer a fairly low flicker rate.

In the interim, I have provided a link to the product specification sheet below, which I hope proves to be useful:

BR30 Specification Sheet: https://www.waveformlighting.com/datasheets/CS_4011.pdf

Are the BR30 bulbs flicker-free?

I'm interested in the BR30 4000K bulbs. I'd like to know are these bulbs flicker-free. I'm very sensitive to flicker.

Our BR30 lamps are currently not considered flicker-free and have a measured flicker rate of 6%.

​Do keep in mind that 6% is a very low flicker rate and may be sufficiently low; incandescent bulbs, for example, typically have a flicker rate of 15-25%.

Full Spectrum and Flicker-free LED Recessed Lights

It has been recommended that the recessed lights in my autistic son’s basement bedroom with a low ceiling be full spectrum non flicker. What would you recommend? I find LED lights generally extremely bright. Also, I’ve read that the flicker has more to do with the electricity going to the lights rather than the bulb. Should I change the very old dimmer switch? 

Though we would usually recommend our BR30 products for your recessed lighting, (such as the 3000K Ultra High 95 CRI E26 BR30 LED Bulb for Home & Residential product) these items are unfortunately not flicker-free. As such, these products might not be a good fit for the installation.

I ordered 6 x CENTRIC HOME™ Full Spectrum Flicker-Free A19 10W LED Bulbs (2700K). It says they are not suitable for enclosed fixtures. Would they be okay for semi-enclosed? I have a couple standing lights with 3 x cones that house the bulbs. I also have the cone desk lamps.

We're happy to confirm that most semi-enclosed fixtures should be safe to use, so long as there is adequate venting for heat dissipation.

For context, unless a fixture has a way of easily dispersing the heat generated by the bulbs, the hardware within the bulbs can overheat and cause the product to encounter errors. 

Flicker-free Power Supply for non-Waveform LED Strip Light

I'm interested in the FilmGrade DC Power Supply for LED Strip as well as the Flicker-Free Dimmer. I already have LED strips in my studio that are causing significant flickering problems when filming them and was wondering if I could just get the Waveform Lighting DC Power Supply and use that instead of the AC adaptor provided with my LED strips? I was also checking out your Dimmer but I don't really need dimming capabilities, I'm just looking for a flicker-free power solution. In that case would your DC Power Supply fork for my needs? 

Based on my review of the product manual, it does appear that the FilmGrade™ DC Power Supply for LED Strip product could be compatible with the lighting product referenced.

That being said, I do not see a listed voltage for the OLS Home Accent Multi-Color Pro Series Lighting Kit product.

As such, we would recommend checking the pre-packaged A/C adapter to confirm voltage compatibility prior to purchase. Generally speaking, utilizing an incorrect voltage can cause product damage and create safety hazards.

My current power supply outputs 12V and 2Amps, does that sound like this would work as a replacement then, and should I consider the 12V version over the 24V version? Also will this for sure resolve the flickering issue I currently have when filming my LEDs?

Based on the details provided we would recommend a 12V power supply product for your installation over the 24V, as utilizing a higher voltage power supply with 12V products can overload the product circuitry and cause hazardous product issues. We would also recommend reviewing any safety guides that your LED strips may have come with to ensure compatibility.

Flicker-free T8 LED Tubes for Vision Therapy Office Lighting

We are a vision therapy institute that sees patients recovering from traumatic brain injury. One of the symptoms of post-traumatic vision syndrome is an extreme sensitivity to light. Our office has regular fluorescent ballasts. We're looking for a solution with a lower flicker rate and a warmer color temperature. Will purchasing your T8 tubes solve for our flicker rate issues or will we see flicker at the same rate as the current fluorescents? 

Based on the details provided, we might recommend our 4000K CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free T8 LED Tube Light product for your office installation. 

​While we can confirm that this product offers flicker-free performance, it might be helpful to know that some tube light fixtures contain pre-installed ballasts which are incompatible. When these products are installed within fixtures that may have not been designed for LED products, they are more likely to exhibit compatibility issues.

However, we do offer an illustrated guide to the alternative ballast-bypass installation methods, as well as a guide for the ballasts which have been tested for compatibility. For your reference, we have included both links below.

Tested Ballast List: https://www.waveformlighting.com/files/CD4020.txt

Product Specification Sheet: https://www.waveformlighting.com/datasheets/CS_4020-4000.pdf

Are your NorthLux A19 bulbs flicker-free?

Are your NorthLux bulbs flicker-free, like your Centric bulbs? Also, do you offer a watt equivalence higher than 60, please?

We are happy to confirm that the NorthLux™ 95 CRI E26 A19 LED Bulb for Art & Studio product features the same flicker-free operation as the CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free A19 10W LED Bulbs.

Unfortunately, we do not have a higher-wattage A19 bulb available at the moment. You may want to consider our A21 Bulbs, which are equivalent to a 100W incandescent bulb. 

T5 LED Linear Light Fixtures Flicker Data

Does Waveform have any data regarding the flick % of the NorthLux™ 95 CRI T5 LED Linear Light Fixtures? (Or even an educated guess?)

We can confirm that our T5 LED Linear Light Fixtures are flicker-free. 

I do have one more question: is a longer, or additional, extension cord (for connecting two lamps) available for the NorthLux T5 lamps?

While we currently do not have a longer power cord available than the 12” (1 ft) pre-packaged cord, we can confirm that this product is compatible with longer third-party C8 plug cords that could be found at stores such as Home Depot or Amazon.

What is the difference between the Centric and Film Grade A19 bulbs?

What is the difference between the Centric and Film Grade A19 bulbs? Are they both completely flicker-free? 

We can confirm that both products feature flicker-free operation, and are extremely similar in design. The primary difference between these items can be found in the color temperature options that are available.

Will your flicker-free light bulbs prevent flickering during power fluctuations?

I am interested in your flicker-free lighting, but I have one important question: Will your flicker-free light bulbs prevent flickering during power fluctuations as well? For example, some of our current led lighting (Feit -- cheap, I know) flickers when we run devices/appliances that draw heavy loads like the washing machine, 3d printer, etc. Do your bulbs solve this problem?

We are happy to confirm that the flicker-free LED bulbs will offer flicker-free performance under normal running conditions. However, it is difficult to know how these products would react if power fluctuations occur, due to the numerous potential variables.

However, if these items experience considerable flickering or fluctuations while operating at with same time as the high-power draw devices and appliances, please know that we are happy to offer a 30-day return policy for all orders.

Flicker-free LED Bulbs for Golf Sim Room Lighting

I'm looking for bulbs that are flicker-free to use in my Golf Sim room. I have two cameras that I use and the current LED lighting I have flickers which can be hard on the eyes and annoying. 

The first product which comes to mind is the CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free A19 10W LED Bulb. This product is available in both 5000K and 6500K and offers flicker-free performance that your installation might benefit from.

The 6500K option might be of specific interest to you, as the light emitted by the product will closely simulate that of full direct sunlight. For more information regarding the differences between 5000K and 6500K, I have attached a helpful blog post from our website below.

Difference Between 5000K and 6500K Bulbs: https://www.waveformlighting.com/art-painting/difference-between-5000k-and-6500k-bulbs

Do you have flicker data on T5 LED Linear Light Fixture

I'm an Australian artist/painter and your lights sound/spec amazingly. Do you have Flicker data/info on these particular lights? Installing these lights on the ceiling, clearly, I'll have to turn the power on and off at the wall, rather than on the ballast itself, I presume this is ok? So the light would be in the on position, with power being turned on and off at the wall. Is that all ok? - How long is the c9-c8 connector that comes with the light? And can the lights be daisy-chained with normal c8-c8 extensions of longer lengths bought off the shelf? 

The NorthLux™ 95 CRI T5 LED Linear Light Fixtures offers flicker-free performance. 

Though these linear light fixture products can be daisy-chained together using the 12-inch (30 cm) included cable or via third-party C8 two-prong plugs, please note that these items are not designed to be configured with wall switches or dimmers. As such, these products might not be ideal for ceiling-mounting in all installations.

Edison Style E26 LED Bulb with Higher Lumen Output

I am looking for a good quality Edison style E26 led bulb that offers 600 plus lumens at 3,000k color light. Do you have any that offer that, as I only see a lumen output of 450 on your website? Also, do you have any Edison type that offers a no-flicker option? We are having issues finding Edison-style LEDs that don’t flicker and aren’t sure where to look especially at 3000k color light. 

Though we do offer Edison-style E26 bulbs in the 3000K color temperature, you are correct that these items are unfortunately not flicker-free, and have an output of 450 lumens.

That being said, I can confirm that we hope to offer a higher-lumen output version of this product sometime in the future, although I do not have any precise dates on hand.

Any idea why the Edison LED style flicker more than the typically led style bulb? We would like to have the Edison style in some of our chandeliers and pendants but the flicker is bothering us. Also, why is it so hard to find quality 3,000k Edison-style LED bulbs? 

Though we cannot comment on the availability or features of 3000K filament bulbs elsewhere, we can confirm that our filament bulbs are currently not flicker-free due to hardware constraints.

As we are continually improving these products with engineering updates, we hope to eventually provide flicker-free performance for all of the products in our catalog.

Are the ABSOLUTE SERIES™ LED Flexible Strip 5000k version flicker-free?

Are the 5000k version of this series flicker-free?

We are happy to confirm that the 5000K ABSOLUTE SERIES™ LED Flexible Strip operates with flicker-free performance when paired with a power supply such as our 12V FilmGrade™ DC Power Supply for LED Strip.

As can be noted on the Photometric Data sheet for the product, the flicker percentage when tested with the FilmGrade™ DC Power Supply for LED Strip is 0.01%.

Centric Daylight vs Northlux

Which 95 CRI T8 LED Tube light is better? We are filming videos. Our other studio lights are 5500K but I am thinking the 5000K can work. They would be replacing the current ceiling lights which are quite warm. I was interested in the flicker-free Centric but the Northlux is advertised as studio lighting. Are there potential flicker issues with the Northlux? 

Our NorthLux T8 LED tube lights should work quite well for your needs! They are also flicker-free but not listed as such, since flicker is generally not a concern for most of our visual arts studio customers.

​On the other hand, we completely understand the concerns you have concerning flicker and on-camera use. As such, as an additional layer of assurance of flicker-free performance, we would recommend installing these lamps in a ballast-bypass configuration so that any flicker or other interference from electronic ballasts is not introduced into the light output stream.

We also do find that many TV/cinematography lighting systems are calibrated to 5500K / 5600K, however, the NorthLux 5000K should be a similar match, and the 95 CRI color accuracy should be a great fit for the film.

Full Spectrum and Flicker-free LED Strips for a Dark One-Bedroom Apartment

I want to put hidden lights all around the ceiling of a dark one-bedroom apartment. I like a full-spectrum LED. Please help me understand and choose the right product. 

We believe that a great first step would be utilizing our standard bulbs in the lighting fixtures in your space.

Based on the details that you provided, we believe that replacing the existing light bulbs could make a large difference at a significantly lower cost than the LED strip light products. As such, we have provided some product links below.

Due to the stated preference for lighting which is similar to direct sunlight, we recommend the 5600K color temperature option of the FilmGrade™ Flicker-Free A19 LED Bulb. 

​This product can be easily installed into standard lighting fixtures, has a 3-year warranty, and offers full spectrum lighting that will appear visually identical to that of natural sunlight.

Product link: https://store.waveformlighting.com/collections/a19-bulbs/products/filmgrade-flicker-free-a19-led-bulb?variant=16011563991142

Choosing LED Lighting Allowed for TBI Conditions

I respond poorly to conventional LED lighting. As far as I can tell, my traumatic brain injury causes a response, not unlike that of an epileptic to the flashing of LEDs. The problem could be in the cold blue of the lights used in many commercial settings, or simply the intensity. Can you direct me to articles that will help me understand the problem — and choose bulbs? I am starting with a shop space and I am concerned that the 5000k fixtures you offer will be too white for my eyes. 

Our research and development for our products is generally limited in scope to the technical performance of the LED lighting system, so when it comes to their efficacy in a medical context, our data and ability to provide definitive answers is quite limited.

That being said, I do believe that you are definitely on the right track when attempting to determine the source of symptoms caused by LED lamps.

I have seen most studies link the flicker produced by artificial lighting to detrimental health effects, while the concern with blue light seems generally centered on circadian rhythm disruption.

Natural sunlight is essentially a flicker-free, 100 CRI light source that has a color temperature of 5000K or higher (depending on the season, time of day, etc). Does exposure to natural daylight produce those symptoms for you? If not, I would suspect the issue is more likely related to flicker, rather than color temperature and intensity.

In addressing your lamp configuration question, you are correct that installing our tube lights in a fixture will require some considerations to ensure fixture compatibility. One search that may yield some results is "LED ready T8 fixtures" as these fixtures are built and assembled without any ballast inside.

We are also looking to launch a line of LED ready T8 fixtures in the coming weeks so that could be an option as well.

Photophobia can be a real problem for some people with TBI, so they use sunglasses outside and in most indoor spaces. Somehow, most LEDs seems brighter than outdoor light to my eye, or to my brain. It may be that flicker creates irritation and calls my attention to the lights.

With your input, I am more confident that your 5000k shop lights will work for the space I have in mind. I will start with enough fixtures to test my response to them. I will also look into LED ready fixtures (that will support your 4000k bulbs).

​Your observation that most LEDs seem brighter than outdoor light is very much valid and I suspect the nuanced difference is due to the way in which the light is distributed.

​A single 800 lumen daylight bulb may produce far less light than natural daylight (i.e. "brightness") but the way in which the light is emitted from a very concentrated 1-2 inch sphere is quite unnatural and will most certainly appear brighter to the human eye. Contrast this with natural daylight, where the light falls down from an entire diffused dome of light, aka "the sky," and you can see why our eyes would react differently.

In short, the way in which the light is installed and distributed in your room may also have an effect on your perception and reaction to the lighting environment. For this reason, wall-washing and cove lighting (indirect lighting methods which bounce the light off of interior surfaces) are popular options that can provide a more comfortable space.

LED Strip Lights for Photographing Artworks

I'm looking to create a lighting setup for digitally photographing artworks (mainly paintings) and then printing the files. 

I intended to make 4 panels around 40x50cm from 2-3 5m led rolls cut to lengths and attached to a backboard. I would like to be able to dim these panels also.

​This sounds like a great approach and excellent use case for the ABSOLUTE SERIES LED strip lights. The LED strip lights include double-sided adhesive and should allow for quick installation onto the backboard.

​For dimming, we recommend our FilmGrade flicker-free LED dimmer, which can be installed in between the LED strip lights and the power supply. Please see below for the product link:

​I am looking at the 99% absolute series and would like advice on how much light I may need (how close to space led strips on the panels?) and which driver I may need for say 7.5-meter strip cut to lengths.

​The amount of light needed would depend on the brightness needed for your photography (perhaps determined by your shutter speed, aperture, and ISO settings) as well as the distance away from the artwork. As a general ballpark estimate, each meter emits approximately 1250 lumens, which is equivalent to a 75-100 watt incandescent bulb.

​The maximum run length for the product is 5.0 meters. If connecting 7.5 meters per panel, you will need two separate power supplies (and perhaps, unfortunately, you will also require two separate dimmers for the separate circuits). The link to the power supply is shown below:

​Our general recommendation for spacing is to space the LED strip lights no farther apart than the distance from the illumination surface. In other words, if the panel is to be placed 20 cm from the illumination surface, the LED strips should not be spaced farther than 20 cm apart.

​Also, would the absolute series be good to record digital colors from paintings? I may install a linear polarizing sheet across the front of the panels also. They will likely be set at 45 degrees to paint.

​Yes, the ABSOLUTE SERIES is a great option for digital image capture! The 99 CRI rating is the highest that is currently available in the industry and informs us that the color accuracy as captured by your camera would be nearly perfect.

​The polarizing sheet, as well as perhaps a diffuser sheet, can help ensure even and smooth light distribution across the paintings.

​I notice a beam angle referenced in preassembled lighting panels - can you briefly explain this? and is it possible to recreate it with the strip LEDs?

The beam angle refers to the angle at which the light is dispersed. Our LED strip lights have a beam angle of 120 degrees, which you can think of as being a very wide conical light dispersion angle.

An led strip shows a lumen output of 6250. What would be a comparison in Lux at 1m or 3m? I suspect I am a little underpowered at 6250 lumens / 416 watts approx.

​A single row of LED strip lights will provide approximately 300 lux at 1 meter, and 25 lux at 3 meters. If using multiple rows, however, you would be able to add these lux values up in a linear fashion to determine the illuminance on that particular surface.

​You mentioned a space of 20cm between strips at a 20cm distance. I had guessed placing led strips at around an 8cm gap (mainly for estimated panel size using a 1x 5m reel, but I think I may need the strips much closer. 

Closer together than the 20 cm distance I had somewhat arbitrarily suggested is not an issue at all.

​I think I may need 4 panels of 5m strips cut to lengths (with a driver and dimmer for each panel) although this becomes pricy. Would you concur that with your products a 5m strip is the maximum for the drivers and dimmer?

Unfortunately, the maximum run length would indeed be 5 meters due to the power supply capacity as well as the limitations of the LED strip circuitry.

I generally understand CRI and the wavelengths of color and your absolute series seems to be as good as a "roto light" or "Gemini lite panel" and possibly as good as it gets. I see another figure being used for color perception and described as TICI. Do you have a rating for the Absolute series and what is TICI? (can't find it on google)

TLCI is the Television Lighting Consistency Index, frequently used in TV and broadcast environments in Europe. Similar to CRI, the TLCI determines color accuracy in the context of cameras and photography. Our ABSOLUTE SERIES has been tested to 99 TLCI (please see attached).

Are your LEDs flicker-free? I presume 4x 5m reels could all be exactly the same intensity and color? And the best color accuracy would be from a fixed-temperature LED. I note the preassembled panels from others have control over temperature, intensity, and hue in some cases.

Our LEDs are flicker-free when used with a flicker-free power source. All reels are calibrated to the same brightness and color point and are not adjustable, unfortunately.

​Would you happen to know what the import charges would be?

Unfortunately, import charges are quite variable and it is difficult to provide estimates up front, as these can depend on the specific port of import as well as customs officer discretion.

​If you would like to inquire with local customs authorities in advance, you might want to check on the estimated costs for products with HTS code 8539.50.0090, which is what is typically used for LED strip lights.

Choosing between Shop Light Fixtures and T8 LED Tubes for Art Studio Lighting

I’m a painter looking for shop lights for my art studio, and I’m trying to decide between purchasing your Northlux 95 CRI LED Shop Light Fixtures or your NorthLux 95 CRI T8 LED Tubes for Art & Studio. I have several questions: 

In terms of lighting an art studio, do you recommend one of these options over the other? Is there a difference in the quality of light they provide?

Our daylight color temperature products are a great fit for an art studio, and generally speaking, all products under our "NorthLux" brand would be an excellent fit.

As you mention, however, many of the lighting requirements for artwork and other applications, such as studio photography, do overlap quite a bit. As such, you may see several of our products which are listed on separate product pages even though the underlying product is the same. (Please see my response to your question below about the CENTRIC DAYLIGH vs NorthLux, for example).

And if you recommend I purchase the LED tubes, is there a hanging fixture you recommend that will work well with them?

​We don't have any specific recommendations, and it is a bit difficult to locate compatible fixtures since many fixtures available on the market today are geared towards fluorescent lamps and not LED lamps.

Our LED lamps can be used with fluorescent fixtures as long as they either contain a compatible fluorescent ballast, or the fluorescent ballast is bypassed.

​We would recommend performing a search for "LED ready" fluorescent fixtures or consider the shop-light style LED fixtures you mention below.

Does the Northlux 95 CRI LED Shop Light Fixture have a frosted cover on it? Or is the cover clear, exposing the LED strips?

Our previous batch of shop light fixtures did not have a frosted cover, so the photos you see on the website will also reflect this and show the individual LED diodes. Our new batches, however, have a frosted cover, allowing for a more diffused and distributed light output.

What is the difference between your Centric Daylight and Northlux lines? Would the Centric Daylight tube lights also work well in an art studio?

​Both the CENTRIC DAYLIGHT and NorthLux product lines have the same underlying technical specifications. As mentioned above, these product markets have identical or very similar lighting requirements and the products can be used for either application.

The best way to confirm whether products are identical or not would be to check the part numbers listed under the product name on each product page.

I noticed that the Centric Daylight tube lights are flicker-free, which sounds great. Do the Northlux lights have a flicker? 

​The NorthLux lamps are also flicker-free, so that would be a nice benefit for an art studio as well (even though we are not actively marketing it as such at the moment).

If I order the light fixtures now, will the ones I receive have the frosted cover? In case it makes a difference, I plan on getting a six-pack of the 5000k ones. 

Yes, any orders placed now or in the future for the NorthLux shop light fixtures (5000K) will have the frosted cover on them.

Just to clarify, is the entire NorthLux line of products flicker-free, including the shop light fixtures?

The new 5000K fixtures are both flicker-free and have a frosted cover.

In case the shop light fixtures don't work out for me, is it possible for Waveform Lighting to schedule a pickup for the return from my home? I'm located in California. 

We offer free return shipping via a pre-paid USPS Priority Mail shipping label. USPS offers complimentary pickup at most residences so if this works for you, we should not have any issues accommodating the pickup request!

Is it safe to plug the shop light fixtures into an extension cord, even when daisy-chaining multiple fixtures? My studio ceiling is very high and the 60-inch power cable won't reach any outlets without an extension cord.  

Yes, as long as you do not exceed the amperage rating on the extension cord, you should not have any issues. The amperage is calculated based on the individual amperage ratings of each fixture (0.4 amps) multiplied by the number of fixtures you plan on daisy-chaining.

For example, four fixtures would have an amperage of 1.6 amps (0.4 amps x 4 fixtures) so you will want to make sure the extension cable has a rating that exceeds 1.6 amps.

Flicker-free Bulb for Color Rendition and Artwork

I'm looking for a flicker-free bulb that has good color rendition, for alertness and artwork. What do you recommend?

Though we, unfortunately, do not have 100W bulb products available at this time, we're happy to confirm that we sell many products that offer a high CRI which could be beneficial for artwork creation.

For example, our D50 5000K A19 LED Bulb for Color Matching (ISO3664:2000) product is flicker-free and offers a high CRI of 95+, as well as an R9 value of 80+.

This product is also designed to be compliant with the D50 CIE Standard, which may prove to be useful. For more information on D50, we have a terrific blog post on our website, which I have linked below.

What is D50 for graphic arts & printing?: https://www.waveformlighting.com/color-matching/what-is-d50-for-graphic-arts-printing

Are there any flicker-free floodlights?

Unfortunately, we do not currently sell any flicker-free floodlights aside from our realUV™ LED Flood Light product at this time.

However, based on the details provided, our NorthLux™ 95 CRI T5 LED Linear Light Fixtures might be of interest as an alternative. These integrated lighting fixtures can be easily mounted onto many surfaces, contains all electrical components within the housing, and are available in both the 5000K and 6500K color temperatures.

Does High CRI LED Strip Light Flicker-free?

Does high CRI LED strip flicker-free? In that, if we use the dimmer, it will be flicker-free or not? We need to use your LEDs for our test equipment and we need to control the lux level with your diffuser, will it be recommended that any other products be available with you? 

We're happy to confirm that our LED Strip Lights are flicker-free when paired with a flicker-free power supply, such as our FilmGrade™ DC Power Supply for LED Strip, as well as our FilmGrade™ Flicker-Free LED Dimmer.

Please note that as our LED Strip Light products are available in both 12V and 24V versions, it will be important to select a compatible 12V or 24V power supply. 

Do you have bulbs that have no blue light or flickering?

I am in the process of designing a new home. My goal is to keep blue light and flickering as close to 0 as possible. Do you have bulbs that would satisfy this request?

In the interim, the first product that comes to mind is our 2700K CENTRIC HOME™ LED Strip Lights for Home & Residential product, which is flicker-free when paired with one of our flicker-free power supplies.

Alternatively, we also offer the Lux24™ Circadian LED Bulb product which might be of interest, however, this product is unfortunately not flicker-free.

If it proves to be useful, we also have a great article on our website that discussed blue light in depth:

Blue Light, Melatonin, and Circadian Rhythms: https://www.waveformlighting.com/human-centric/blue-light-melatonin-and-circadian-rhythms

I am designing a home from scratch and would like to have lights that have no blue light or flickering throughout the home. 

As mentioned in the blog post, blue light can be found within most light sources, including full-spectrum lighting. However, special bulbs such as our Lux24™ Circadian LED Bulb are designed to include as little blue light as possible. Unfortunately, this product is not designed to be flicker-free.

While we are proud to offer many full spectrum lighting products that are designed to be flicker-free, the Lux24 is unique in the extremely low level of blue light emitted. As such, we may not be able to provide any other products that could be ideal for your home design, as well as the specifications mentioned.

Would these bulbs flicker much if there are voltage variances at times?

Would these bulbs flicker much if there are voltage variances at times?

Generally, voltage fluctuations are not desirable for our LED products, and the flicker that they introduce would be quite different from the stroboscopic flicker that our products aim to address.

For example, voltage fluctuations caused by an unstable power grid may result in very noticeable changes in brightness that span several seconds. Our flicker-free products do not have any built-in features that would reduce this effect.

On the other hand, consistent but stroboscopic flicker seen as a flashing, on the order of 60 times or more per second, is eliminated using our flicker-free technology.

FilmGrade A19 LED Bulb 3000K Spectrum Chart

Can you please send me the Spectrum Chart PDF for this item: FilmGrade™ Flicker-Free A19 LED Bulb

Below is a link to the photometric report for the 3200K FilmGrade™ Flicker-Free A19 LED Bulb product (PN 4005.30).

Link: https://www.waveformlighting.com/photometrics/TR_4005.30.pdf

Do you all have plans to make any G16.5 bulbs or other common household bulbs?

Unfortunately, I am not aware of any plans to introduce other bulb standards, such as the G16.5, to our store at this time.

I’m confused about the PDF. It seems to be the exact same pdf as the centric 3000K. Is there no difference on the spectrum and CRI levels? Specifically looking at R9...

The identical data is due to the fact that the 3000K FilmGrade™ Flicker-Free A19 LED Bulb product is identical to the 3000K CENTRIC HOME™ Full Spectrum Flicker-Free A19 10W LED Bulb. This can be noted by the shared part number of PN 4005.30. As such, while there may be extremely small differences between individual bulbs, the performance can be expected to be the same for both items.

We do apologize for any confusion which may have arisen by this, as these products are displayed on multiple pages for marketing purposes.

Is there a Flicker-Free BR30 option? I guess the idea is 6% is close enough. 

We can confirm that our BR30 bulbs are not currently flicker-free, though they do offer a lower flicker rate than many similar products on the market.

Flicker-free and Non-dimmable Recessed Light Bulbs

I see you have the BR30s but do you know where I can get the Zero flicker, non-dimmable recessed light bulbs?

We unfortunately are not aware of any BR40 lamps that feature flicker-free light output.​One alternative would be to consider our BR30 lamps, which have a 3.75 inch diameter. The gap between the lamp and the ceiling fixture rim may be on the larger side, but the lamps will fit in the fixture without any issues.

Flicker-free LED lights for Golf Simulator System

We plan to install a Uneekor EyeXO golf simulator with 2 high-speed cameras. Uneekor has recommended I install at least 8 15-watt or higher non-flickering LED track lights to provide adequate lighting to avoid blurring of the images during the golf swing. 

We don't currently have any track light fixtures, but you may want to consider several of our flicker-free lighting options to ensure that your golf simulator system is able to accurately capture high-speed images.

Our A19 products are rated flicker-free and may be the easiest product to install and set up, as it is a standard screw-in light bulb that can be used in a standard lamp fixture. Please see below for the product link:

How many of these installed in track lighting fixtures would be necessary to provide adequate lighting to capture the high speed images? The picture in the Optics attachment on page 10 shows 3 track lighting fixtures with 11 lights distributed among them.

It's a bit difficult to provide a definitive answer for brightness requirements, as this would depend on the camera system and the various light sensors used in the golf simulator.

One way to do a comparison against their recommendation is to compare lamp power. Our LED lamps are 10 watt lamps, so to achieve the same power level as the 8x 15 watt lamp recommendation, you will need at least 12 lamps to reach the same amount of power (8 lamps x 15 watts per lamp = 120 watts).

However, since our lamps are omni-directional, you may not see as much perceived brightness directed towards the golfer, compared to the track light lamps which tend to be more directional. As such, it may be beneficial to increase the power budget further to ensure sufficient brightness.

We would perhaps recommend testing and taking advantage of our free returns policy. If for whatever reason you find that the LED bulbs are not going to work for your project, we would be more than happy to pay for return shipping and offer a full refund. 

Do I want the A19 in 6000K?

Both the 6500K and 5000K should work fine for your needs, as both are calibrated to natural daylight and your camera system should have these calibrations built in. The color temperatures correspond, roughly, to north-facing daylight for 6500K, and direct noon sun for 5000K.​Both options offer 95 CRI and flicker-free light output and therefore should serve well for the application.

Recommended LED Strip Lights with a brightness level equivalent to a Retail Showroom

I am interested in the LED strip lights to light an area 15m long by 6m wide and 2.8m ceilings to a brightness level equivalent to a retail showroom. The calculator says I will need approx 42,000 lumens however I want to confirm that the led strip lights will be suitable. The purpose of the room is mostly storage for area rugs; however, customers regularly request more photos, so colour-accurate lighting throughout the entire area would be ideal. If I was to run two lines of the led strip lights from one end to the other which would equal about 6 reels total, would this actually light the area to the required level? Other than the 6 reels what else would I need to install this? 

To confirm, I've also run the numbers on my end based on the dimensions provided (converted to approximately 50 x 20 ft = 1000 square feet).

​The 42,000 lumens would provide you with approximately 40 footcandles, which is a great brightness level for general color evaluation, especially for larger surface areas such as rugs

Each reel emits approximately 7500 lumens, so the 6 reels sounds like a great target (7500 lumens per reel x 6 reels = 45,000 lumens). Each 16.4 ft (5 meter) reel requires its own power supply, so you will also need to purchase 6 power supply units.

I've linked to some example layouts which show how the power supplies can be connected for a non-dimmable, and dimmable setup, respectively:

https://www.waveformlighting.com/layoutmaps/3002_2A?px=-2183&py=-2023&pw=1366&ph=1046&s=0.1

https://www.waveformlighting.com/layoutmaps/3001_1C?px=-2183&py=-2023&pw=1366&ph=1046&s=0.1

Going with the same target of approx 43,000 lumens and using the linear light fixtures I would need 24 fixtures however I am not sure of the difference between the Northlux 95 CRI and the D50 for color matching, is there a benefit of one over the other for my use case?

Both the NorthLux and D50 T5 linear lights are actually the same product listed on different product pages for marketing purposes (PN 4026.4F.50) - sorry for any confusion!

We will also be creating content for social media, photos and videos (will the lights flicker?).

Our next batch, expected to be available in Feb 2021, will be 100% flicker free and will be suitable for photography.

We would like to have the warehouse look like it is a bright naturally lit room, and are considering the 5000K colour temperature.

This sounds like a great choice! 5000K is generally a nice, neutral light color that approximates noon sunshine. (6500K would be closer to north-facing blue sky).

We will be running the fixtures down two rows the length of the warehouse approx 1.5m from the sidewalls, if we ran 12 along each side would this create the evenest lighting or is there a better method? 

The best way to achieve even lighting would be to space out the fixtures as evenly as possible. Of course, with wiring and aesthetics that may not always be realistic. If I recall correctly, you had mentioned that the width of the space is 6 meters, so running the fixtures 1.5 meters (or perhaps 2.0 meters) from the walls would indeed provide sufficiently distributed light.

How many lights can be daisy-chained together? how many fixtures can be grouped per power plug, and do you have international plugs available at all?

The maximum connection is 70 feet (21 meters). If using the 4-ft fixtures, this would work out to approximately 17 fixtures per daisy-chain link. Unfortunately, we do not provide any additional plug converters, but you may also want to consider locating a C8 plug wire locally, should you prefer avoiding the use of a plug adapter.

Does Full Spectrum Flicker-Free A19 LED Bulb Emit High Levels of EMF?

LED lights are known to emit high levels of EMFs and also produce dirty electricity. Can you tell me more about this regarding these light bulbs? https://store.waveformlighting.com/products/centric-daylight-full-spectrum-flicker-free-a19-10w-led-bulb

We do not have any EMF measurements on our lighting products at this time. We can verify that they are flicker-free, however, with a flicker % of less than 2%.

So you mean to tell me someone can call something "flicker free" even though it still has a flicker?

The official threshold for our flicker-free products is 2%. In actual tests, our flicker % is at 0%. For example, see below:

https://www.waveformlighting.com/photometrics/TR_4005.40.pdf

Do you have a recommended dimmer to minimize flicker while dimming?

I installed new recessed lighting and looking for quality LED bulbs with matching dimmers. I'm personally sensitive to color and flicker gives me headaches. I'm looking at the 4011.30.6P. It shows a flicker of 6%. Is this low flicker amplitude maintained while dimming. It appears Lutron and Leviton dimmer are mentioned as compatible. Any particular dimmer recommendation to minimize flicker while dimming?

We ran a series of dimming tests using a Lutron CTCL-150 and confirmed that the flicker performance is indeed best at or near 100% brightness, where we observed ~7% flicker and 0.02 flicker index.

As the brightness setting is decreased, flicker percentage increases to ~11% with 0.03 flicker index. Given that traditional incandescent lamps exhibit flicker rates of 15% and higher, this performance is in line with, or exceeds that of traditional incandescent lamps and should not present any issues for most residential installations and applications.

Attached are the test results as well as a plotted chart of the results.

Do you think the performance will be similar over the full line of Lutron LED+ dimmers or do you think this will vary substantially from one dimmer model to the next?

We've just repeated the test with the Lutron TGCL-153PH series dimmer and saw the same results (7-11% from high to low).​While we wouldn't be able to draw any conclusions from just these two tests, we now do possess two sets of data points for Lutron performance which may give us some further confidence regarding dimming performance across brightness settings.

Do your flicker-free LED bulbs produce EMI?

Do your flicker-free LED bulbs produce EMI or are they also EMI-free? Also - it appears your low Blue light filament bulb is not flicker-free - is that correct? If not flicker-free, what percentage of flicker does it have? 

We, unfortunately, do not have any technical data on the EMF emissions of the product this time.

Our Lux24 filament bulb is not flicker-free and has a flicker rate of approximately 15-30%.

6500K Flicker-free Lighting for Art Capture, Color Correction and Fine art Printing

I perform art to capture, color correction, and fine art printing. I am using Ikan Lyra LEDs at this time but not so happy with their results. They are okay, but I am looking for 6500K lighting, also flicker-free. I see you have bulbs and strips. 

We suspect that the primary reason for the difficulty in judging color differences is due to an incomplete spectrum emitted by the Ikan product. Specifically, this will likely be reflected in a low CRI value, possibly in the 80-90 range. (You may also want to look into the R9 value, which provides even more data about red color rendering in particular).

As a starting point, we would recommend experimenting with a few of our 95 CRI products. Here are the A19 bulbs which are daylight calibrated to D50 (5000K) and D65 (6500K) with a 95 CRI rating and would be a great starting point for your tests:

If you would like to consider our LED strip lights, we would recommend our FilmGrade LED strip lights which are offered in both 5600K and 6500K:

Our 5000K LED strip lights (also in 95 CRI) are listed under our retail & commercial section:

Installing the LED strip lights will require a bit of additional assembly and installation work. For additional guidance, we recommend referencing our layout maps which can be found at the link below:

https://www.waveformlighting.com/layoutmaps

​Finally, ​we would recommend taking advantage of our returns policy to test out several of the color temperature options and determine if our products do indeed offer an improvement over your current setup. The full policy can be found below:

https://store.waveformlighting.com/pages/returns-refunds-policy

How do I know if the LED sign is compatible with Flicker Free LED Dimmer?

I just recently purchased an LED sign. It flickers on video when dimming. How do I know if that LED sign is compatible with your dimmer?

We can confirm that our FilmGrade™ Flicker-Free LED Dimmer is compatible with LED systems at any voltage level between 6 and 60V DC and < 10 Amps of current draw. If your LED sign exceeds this voltage, we expect that the dimmer would be incompatible.

However, if there are compatibility issues between the dimmer and your LED sign, we would be more than happy to issue a return label to have the item sent back to us for a refund.

Ultra High 95 CRI A19 5W LED vs CENTRIC HOME A19 10W LED Bulb

I need a single bulb that's around 400 lumens and 2700K, so I was looking at your Ultra High 95 CRI A19 5W LED. However, the description does NOT mention that it is flicker-free nor does it mention that it's full-spectrum (while your CENTRIC HOME A19 10W LED Bulb does mention these traits). Is the 5W a lower-quality product? Or is it just fewer lumens?

I can confirm that the 2700K Ultra High 95 CRI A19 5W LED Filament Bulb features the same high CRI of 95+ as the CENTRIC HOME™ Full Spectrum Flicker-Free A19 10W LED Bulb. As such, both products are considered to be full-spectrum.

However, the Ultra High 95 CRI A19 bulb does not offer the same flicker-free performance as the CENTRIC HOME™ bulbs. The flicker-rate of the Ultra High 95 CRI A19 bulb is similar to that of traditional incandescent bulbs.

The benefits offered by the Ultra High 95 CRI A19 bulbs can be found in the warmer color temperatures available, as well as the compatibility with dimmers. In contrast, the CENTRIC HOME™ is not dimmable.

Do you have a Flicker-free Dimmable Bulb Compatible with an Enclosed Fixture?

I live in an apartment with enclosed fixtures and am trying to find High CRI dimmable flicker-free bulbs that will last a semi-reasonable time in an enclosed fixture.

Unfortunately, our dimmable LED bulbs are not compatible with enclosed lighting fixtures due to the requirements for heat dissipation and airflow.

However, if the lighting fixtures are not fully-enclosed, we would be happy to recommend our Full Spectrum E26 BR30 LED Bulbs. These products feature a high CRI and are dimmable. That being said, this product is not flicker-free.

What about the filament bulbs? I know it's not flicker-free (I have some of the BR30s from my old apartment already, but these are def fully enclosed)

Yes. We can confirm that A19 filament bulbs are suitable for use in enclosed fixtures and damp locations.

Flicker Free LED Strip Lights

Do you offer LED strip lights that are flicker-free? I'm considering Filmgrade White LED and Absolute Series LED strips. Are these flicker-free? Am I correct in assuming that the benefits of the Filmgrade flicker-free dimmer apply only when the light is dimmed and not at 100% output?

When any of our LED strip light products are paired with the FilmGrade™ DC Power Supply for LED Strip product, they gain the ability to be flicker-free.

When the LED strip light products are paired with both the FilmGrade™ DC Power Supply for LED Strip as well as the Flicker-Free LED Dimmer, they gain the ability to be both flicker-free as well as dimmable.

In this configuration, the LED strip lights will remain flicker-free at any level of dimming, from 0% to 100%.

Do you have a high CRI 48" 5000k T8 LED tubes replacement with no PWM flicker?

I am currently looking for replacement 48" 5000k T8 LED tubes for my office. I want something with a high CRI and also no PWM flicker. I see your company has two listings. "CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free T8 LED Tube Light" and "NorthLux™ 95 CRI T8 LED Tube for Art & Studio" Is there a difference between the two? How "Flicker-Free" are they?

Our 5000K high CRI, flicker-free LED tube lights sound like a great fit for your office space!

As mentioned, the two products that have the same part number listing are indeed the same product. They have been listed on separate product pages for marketing purposes, and we do apologize for the confusion caused.

Our T8 lamps do not use PWM as they are not designed to be dimmable. As such, their flicker % is kept to below 2%. (All PWM dimming systems have a 100% flicker rate). In addition to photometric testing, we also periodically perform tests using a smartphone's slow motion video capture mode and can confirm that we do not observe any flashing behaviors associated with non flicker-free lamps.

Also, our test report for T8 LED tube light in 6500K shows the measured flicker values of 2% and a flicker index of 0.00. The electronics of the 5000K are the same and we would expect similar, if not identical, flicker metrics.

One additional factor to consider would be whether or not a fluorescent ballast is installed and used in the current T8 fixture. For our lamps, eliminating the fluorescent ballast can be a sure-fire way to ensure that the ballast is not introducing any extra voltage or current fluctuations that can lead to additional flicker.

https://www.waveformlighting.com/photometrics/TR_4024.65.pdf

FilmGrade Flicker-Free LED Dimmer Specs and Wiring

1) What is the switching frequency? Your info suggests 25 kHz, but you have no spec for that on your product page.

2) Is +, -, or neither common to input and output? I am installing it in a fixed installation, where the number of available conductors is limited. Do I need to run both +/- output wires to the load, or can I run the switched output wire to the load, and tap off one of the input wires (whichever is common) as the other conductor?

To answer your questions:

1) The switching frequency for the product is 25 kHz.

2) The output uses a common positive, and the switching occurs on the ground channel. The article and graphic below may provide you with some additional insights on this:

https://www.waveformlighting.com/film-photography/how-to-connect-hybrid-cct-tunable-led-products

Flicker-free full-spectrum lighting for autism?

We have been reading that flicker-free and full-spectrum lighting might help with autism. What would you recommend?

We currently do not have any internal data or testing to verify this, and our lamps are neither approved nor marketed for treating any medical conditions or disorders.

On the other hand, there are several published studies which have linked stroboscopic flicker to autistic behavior, along with a range of other symptoms such as seizures, fatigue, eye strain. Flicker-free lighting may be an effective approach to reduce or eliminate the amount of flicker present in an indoor space and assist in promoting a healthier lighting environment.

The link between full-spectrum lighting and autism appears to be less established. Full spectrum lighting is a relatively vague marketing term, but the general idea behind it would suggest that a full-spectrum lamp provides a light spectrum that better approximates natural daylight. As such, the use of high CRI lamps (a better way to quantify "fullness spectrum") may be an effective way to introduce lighting that more closely resembles natural daylight, especially during daytime hours.

Waveform Lighting offers both flicker-free and 95 CRI LED lamps which may be an excellent options to consider. See below for our CENTRIC DAYLIGHT products, which can be used in a variety of residential or commercial (as well as classrooms and offices) locations:

Are your LED strip lights flicker-free?

I see your CENTRIC HOME™ A19 bulbs are rated as flicker-free. I don't see the same designation for your LED strip lights. Are they also flicker-free?

All of our LED strip lights are flicker-free, when used with a flicker-free power supply. The reason we do not show a flicker-free rating for our LED strip lights is due to the fact that flicker performance with third-party power supplies depends on the power supply unit, rather than our LED strip lights.

Our own power supply units and dimmers provide flicker-free power and are an excellent choice for our LED strip lights. You can be assured of flicker-free LED strip light performance with any of the following combinations:

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