The LED, or light-emitting diode, is very unlikely to fail, and if it does, it goes out slowly over the years. Instead, it's the other electrical bits in LED bulbs that fail and cut off the bulb's ...

LED bulbs come with a deal: Pay a little more than you would for incandescents, and in return you get years of use, lower energy bills and even smart features. And for the most part, they deliver-- ...