The potential power savings of expensive LED traffic lights may be worth it

Many cities are replacing their incandescent traffic lights with LEDs, despite the higher initial cost. Here's why that's actually a good idea.
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The Potential Power Savings Of Expensive LED Traffic Lights May Be Worth It

Add Yahoo as a preferred source to see more of our stories on Google. Traffic light with red light and green arrow for free right turn - Blue Traffic Light/Shutterstock LED signal lights generally ...