Comment by noosphr

There are no white LEDs. Just blue LEDs with coatings that convert a fraction of blue/violet light into lower energy colours. They work the same way that fluorescent light do.

This means that LEDs produce a much higher amount of blue light that incandescents: https://www.researchgate.net/figure/Spectrum-of-a-white-LED-...

Blue/violet light is known to cause cancer for a century now: https://www.nature.com/articles/s41416-020-01231-7