LED bulb failure mechanisms are complex and fundamentally ... Impact of Color Shift defines four color-shifts (blue, yellow, red, and green) observed in LED lamps, although the yellow shift ...

and that brighter LED streetlamps may be making the problem worse. The AMA report goes a step further, and pins extra blame on the color of the light. Blue light apparently suppresses the ...

Another method uses a blue LED and yellow or red phosphors. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires permission.

Most LEDs emit a cold, blue light that can feel sterile ... My personal favorite is a 40-watt-equivalent soft white bulb.