Compact Fluorescent Lightbulb (150)

Compact Fluorescent Light Bulbs

Use Less Energy with Compact Fluorescent Light Bulbs (CFL's)

Switching from traditional light bulbs (incandescent) to CFLs is an effective, simple change residents can make right now. Making this change will help to use less electricity at home and prevent greenhouse gas emissions that lead to global climate change. Lighting accounts for close to 20 percent of the average home’s electric bill. ENERGY STAR-qualified CFLs use up to 75 percent less energy (electricity) than incandescent light bulbs, last up to 10 times longer, cost little up front, and provide a quick return on investment.

If every home in America replaced just one incandescent light bulb with an ENERGY STAR qualified CFL, in one year it would save enough energy to light more than 3 million homes. That would prevent the release of greenhouse gas emissions equal to that of about 800,000 cars.

CFL Fact Sheet

Department of Energy


  • Change A Light Logo 2 (75)

    ENERGY STAR Change a Light Pledge

    The Change a Light Campaign is a national challenge to encourage every American to help change the world, one light - one energy-saving step - at a time. You can show your commitment by pledging to replace at least one light in your home with one that has earned the ENERGY STAR.

    Take the Pledge »