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.
EDN

Cree’s LMR4 LED light module: What’s inside, and how TrueWhite works

Cree sent me an evaluation kit for its LMR4 LED light module. Teardown time! The past two teardowns, the LED tube light and the EcoSmart bulb, were replacement lights for existing fluorescent or ...
来自MSN

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

LED signal lights generally carry a price tag several times higher than incandescent traffic signal bulbs. However, that hasn't stopped many cities from replacing their incandescent lights with LED ...