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Does IR LED strips have different output intensities?
I would like to know if IR LED strips have different output intensities (not sure of units, lumens?). Looking for the highest output to help penetrate seawater. Assuming too that 850nm would penetrate better than 950nm?
Unfortunately, we have not performed any internal tests regarding how the light output from these products is absorbed by saltwater or other liquids.
Based on our review of a visible light absorption spectrum article, we do believe that longer wavelengths (such as the infrared band) will have a higher absorption rate by water. As such, the infrared output may not be able to penetrate saltwater in the preferred fashion.
I'm trying to create a system we used many years ago using potted IR LEDs (Four heads, about 50 LEDs per head, see attached). The company that created them is no longer in business and I was hoping that I might get away with IR LED strips versus the potted method, which you can see does work. FYI, the field of view was about 1/4 meter squared. I'm curious to know, are all IR LEDs equal? As in luminance output, brightness? And what unit is used to describe?
We are sorry to say that underwater installations are likely not a good match for our LED strip lights, as they are not IP rated. As such, any contact with liquid or moisture will void the warranty and potentially cause electrical hazards.
With white lights, we usually measure how similar the output quality is to natural daylight via CRI, which is a measurement from 1-100. For example, older fluorescent lights might have a CRI of 60, where our Absolute Series have a CRI of 99 and have an output that is virtually indistinguishable from full daylight.
The quality of IR is defined by the measure of the output, which is 1.9 watts in this instance. Quality is also measured by the accuracy of the output, which is measured by the emission spectrum (that is, the measured nanometer output within the wavelength of light) and the ‘full width at half maximum’, which measures the width of the spectrum curve. These two data points show us how precise the output is on the full wavelength spectrum.
I have attached a link to the product specification sheet below, which contains more information.
Specification Sheet: https://www.waveformlighting.com/datasheets/CS_7031.pdf
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LED strip lights