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 ...

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 ...

When cities started replacing the old, incandescent bulbs of traffic lights with new LED arrays, it came with all kinds of wonderful upsides. LED arrays last much, much longer than bulbs, which need ...