Quote - Cree (maker of LED lighting) has an office building around the corner in RTP (research triangle park). If you've seen stoplights with dots of light instead of a whole bulb, that's LEDs at work.

They were testing those traffic lights here in Toronto as an energy saving move. There are about 250 intersections using them in the trial. I suspect that all intersection lights will be changed over shortly as the test was deemed sucessful. This city has been on a massive energy re-fit since the blackout a few years back. I kinda like them. I do find that the lens is pretty directional though so if you are a bit off to the side then they appear not to be working. No problem for drivers but doesn't work so well for pedestrians and cyclists that catch them at an off viewing angle. I find that the ones they have placed as overhead highway lighting on the major roadways here are very good though they have little spread.