Participating

"They're [LEDs] also very small, they can be programmed to emit different hues of light and they are just about ready for prime time - that is, for commercial, industrial and residential use... This week, Cree and the city of Raleigh, N.C., announced a plan to turn Raleigh into an "LED City". The city will install LEDs in garages, parking lots and outside buildings, and replace about 33,000 street lights... LEDs are being rolled out as the technology has improved and costs have dropped. For starters, they are being deployed in lights that are on all the time and that are cumbersome to replace. (LEDs have a lifespan of up to 10,000 hours, or 11 years.) That's why they are now in more than half the traffic lights in the U.S., and in that Raleigh parking garage."