"Holy Grail" of LEDs Will Cost Three Bucks, Last 60 Years

[KennethE]

"Holy Grail" of LEDs Will Cost Three Bucks, Last 60 Years

Colin Humphries' team at Cambridge University has figured out how to grow gallium nitride on silicon instead of sapphires, making a much cheaper light emitting diode. LEDs can reduce lighting bills by 75% compared to incandescent, but they still cost a lot of money. Humphries claims within five years, the new bulbs will be available, cheap, mercury free, dimmable and designed to last over 50 years.