Chrontius
Flashlight Enthusiast
http://www.ecogeek.org/content/view/1415/
New nano-crystal coating replaces the phosphor in conventional white LEDs while wasting nearly no energy. That's nearly a fivefold increase in bang/buck.
New nano-crystal coating replaces the phosphor in conventional white LEDs while wasting nearly no energy. That's nearly a fivefold increase in bang/buck.
