In five years we may just see a revolution in residential and office lighting led by LEDs manufactured with gallium nitride, according to Professor Colin Humphreys of Cambridge University. Gallium nitride LED lighting produces a brilliant light and could cut electricity consumption by approximately 75% in developed countries. This reduction would have the added benefit of creating substantial cuts in carbon dioxide emissions from power stations and help to preserve our fossil fuel reserves.
Gallium nitride, or GaN, is a semiconductor material that is considered by many to be the next important semiconductor after silicon. It is a brilliant light emitter able to operate at high temperatures. GaN is used to create devices with small physical volume that produce high output power.