The complain is really less about Blue LEDs and more about high temperature white LEDs (5000K and upwards). Those really fuck up the circadian rythm. A warm or

The complain is really less about Blue LEDs and more about high temperature white LEDs (5000K and upwards). Those really fuck up the circadian rythm. A warm or natural white LED is much less harmful (3500K and under and 4000K respectively) and you can mix both. Only a few days ago I found a very interesting LED module that would mix both and use the natural white for full light intensity and mix over to the warm LED when you dim it via PWM or DC going as low as 2000K. Myself, I built a LED RGBW controller and I use the Red and Blue channels to change the color temperature of the strip itself. The strips can be had for very cheap on chinese websites, individual LED modules with WS2812 pins cost less than a dozen cent. High powered LEDs of various temperature don't cost that much either. It's not a hard problem and definitely solvable.