Comments on: Are LED lights a health hazard?

By: Wendy Goodwin

Wendy Goodwin — Mon, 05 Sep 2016 09:28:21 +0000

I have had major problems with compact fluorescents which were installed last year. Total Programmed Cell Death in all leaves by High Light Stress. This year no leaves in canopy but epicormic branches & leaves round base & creeping up trunk. Council do not agree but I am a Biologist and had one loads of research they have not! The light are on all night, not giving the leaves any to to repair or recover.They they changing them to LEDs next year and I continue to be worried! Had this tree for 28 years,so sad.

By: ludwig

ludwig — Wed, 19 Sep 2012 17:14:02 +0000

It seems like some studies are running light years behind technological evolution. The blue spike is gone already longtime in the state of the art white leds. Bad quality stuff and more important, bad driver electronics have a much higher impact on the health effects leds may present.

By: Clifton Lemon

Clifton Lemon — Tue, 18 Sep 2012 20:28:11 +0000

Not all LEDs have high blue spike spectrums. GaN on GaN LEDs show a low blue spectrum, precisely at the frequency that evidently most impacts circadian rhythms. As the fundamental chip technology evolves, this spectrum problem will go away.

By: laurie

laurie — Sat, 15 Sep 2012 19:14:04 +0000

I’ve removed all the post-its I’d slapped on these buggers (they did help darken the bedroom), handed the husband your story Brian, and am now awaiting his tech re-locations so I can sleep without a pinched-from-first-class diva sleep mask.

Thank you, thank you, thank you for giving him 3rd party verification that these lights are demon eyes!

By: Rob Huston (@LED_Canada)

Rob Huston (@LED_Canada) — Fri, 14 Sep 2012 20:33:51 +0000

So, its any light not LED, Turn all lights off (including blue LEDs)when sleeping. On the plus side , the LED “Haters” will now have(only)one more, so called studies to point at.