Buying light bulbs today ... the surface of the LED," McGowan says. The coating on the LED, called a phosphor, can be ...

Heavily-used LED bulb (left) vs seldom-used bulb (right) after 8+ years. I’ve seen lumen depreciation and color shift first-hand. In June of 2010, I replaced twelve 65W incandescent PAR30 ...

Theoretically you should be able to install a LED bulb in a fixture that used to hold that incandescent lightbulb which had to be replaced annually and have it last a decade or longer. Yet we seem ...

All that said, Grable reports that incandescent bulbs have an average of around 800 hours, far shorter than the average of most LED bulbs, so you should still be getting your money's worth unless ...

The ultimate goal for LED-based white lighting is to replace all incandescent bulbs and compact fluorescent lamps to provide an energy-efficient and long-lasting option for everyday use.