Quick guide to today's energy-saving lights
By Natural Resources Defense Council from July 2014 Issue
Credit: National Resources Defense Council
How much energy each kind of light source uses
This chart compares the three different kinds of lights you can buy when you need to replace an old-fashioned incandescent bulb—which happens a lot, since those old bulbs typically burn out fast. But with today's light sources, the expected life is much longer, up to 15 or 25 years for LEDs. And today's light choices use much less energy, so you'll be saving on your electric bill all year long.