The LED Difference
Are LEDs really much of an improvement over incandescent lights? The difference between the two is called "80-20 effi ciency," and it's as easy to understand as it is signifi cant. The incandescents turn only 20 percent of the power they burn into light, and 80 percent into heat. LEDs turn 80 percent of the power into light, and just 20 percent into heat. So while incandescent bulbs literally burn, LEDs simply light.