Time to Change the LED? Laser-Guided Lightmeter Will Tell You In many of the nation's traffic lights, light-emitting diodes or LEDs with their brighter light and longer life have replaced standard lamps. But knowing when to replace the ...
Tags: Laser-Guided Lightmeter, traffic lights, MoDOT, LED signals
In many of the nation's traffic lights, light-emitting diodes or LEDs with their brighter light and longer life have replaced standard bulbs. But knowing when to replace the signal heads has remained a guessing game, says Dr. Suzanna Long, ...
Tags: LED light