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Home /  Support Center /  Knowledge Base /  A21 Bulbs (100 watt equivalent) /  Full Spectrum Lightbulbs with 488 nm Emission

Full Spectrum Lightbulbs with 488 nm Emission


I am looking for a light bulb for a rather niche application and I would like to speak with someone knowledgeable about your products so I could purchase the best one. 

I am ideally looking for the brightest full-spectrum bulb available at a reasonable cost. Ideally, the bulb should also have a reasonable emission of around 488nm and from looking at the spectrum information available it seems like most (all?) lightbulbs have peaks on either side of this wavelength. 

Would it be better to have a bulb with a lower relative intensity around a specific wavelength, but high brightness or higher relative intensity and lower overall brightness? 

As a starting point, it might be helpful to know that LED lighting technology typically features peaks at the 455nm and 520nm points. As such, most products will feature a slight valley between those two points even if they are able to provide plenty of high-quality full spectrum output. 

Further, lumens are defined as a unit of ‘luminous flux’, that being the total amount of light emitted in all directions. Full-spectrum on the other hand refers to the completeness of a light source’s spectral energy, particularly when compared to daylight. As such, these two measurements are not necessarily linked. 

Some installations, such as those using ultraviolet output, benefit from having a precise output centered at 365nm or 395nm while omitting other spectral output. In comparison, the human-centric lightbulbs in our catalog are designed to provide the full spectrum of light output for homes and other installation areas without many peaks. 

As a primary product recommendation, I would likely recommend our CENTRIC DAYLIGHT™ Full Spectrum Flicker-Free A21 15W LED Bulb, which is able to provide twice as many lumens as our A19 bulb (1600 lumens vs 800) and offers full-spectrum light with a high CRI of 95+. 


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A21 Bulbs (100 watt equivalent)Full spectrum


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