Comment Re:20 year lifespan (Score 2) 372
Traffic signals are a different application. A few yeard ago I heard of a city somewhere up north that replaced all their incandescent traffic signals with LEDs. When winter came, the new signals, using 90% less power, didn't emit enough heat to melt the snow that accumulated in the signal housing. The snow can build up enough to completely block the light, resulting in confusion and accidents all over the city. They had to either go back to incandescents, install a heater element, or modify the housings. This shouldn't affect the street lighting.
All of our MTS busses have converted to LED headlights, which isn't hard to notice because they are exessively bright, even during the day.
All of our MTS busses have converted to LED headlights, which isn't hard to notice because they are exessively bright, even during the day.