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Cake day: June 12th, 2023

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  • It is my understanding that most LEDs are inherently blue, but they add phosphors that mask the appearance of that blue light, making it appear white to our eyes.

    If you look at the spectrum for an LED bulb there is almost always a big spike in the blue part of the wavelength.

    So, if you were to “turn off” the blue light, you would be turning off the source of the light itself. Because of that, filtering is often used to lessen that blue bump in the spectrum.