STANFORD UNIVERSITY SCHOOL OF EARTH SCIENCES - EARTH SYSTEMS PROGRAM

Sustainable Choices

Change Light Bulbs to Compact Fluorescents

Simplicity:
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Carbon Impact:
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Money Savings:
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Health Helper:
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Overview
Did you know that compact fluorescent light (CFL) bulbs use 75 percent less energy than incandescent bulbs, and last up to 10 times longer? With the simple switch of a light bulb, you can help make a big difference in your home. And fluorescent bulbs aren’t the cold, stale lights they used to be—now CFL technology allows for warm, soft lighting. And you can even get a dimmer switch!

Tips & Tricks
Get warm CFLs. You can now get efficient bulbs that produce a warm, yellow light rather than the blinding white light that they used to give off. Go to your hardware store and ask for warm light CFLs.

Monitor your energy bill before and after switching. Watch to see how long it takes to recuperate the costs of your new CFLs, and enjoy the savings.

Look for rebate programs. Many government bodies and energy providers have developed rebate programs to create incentives for buying energy-efficient products. Start you search by checking here.

Web & Print Resources
General information about CFLs:
www.energystar.gov/index.cfm?c=cfls.pr_cfls

General energy saving tips:
www1.eere.energy.gov/consumer/tips/heating_cooling.html
www.energyquest.ca.gov/saving_energy/index.html
www.stillwaterpower.com/100tips.html

Rebate programs:
www.energystar.gov/index.cfm?fuseaction=rebate.rebate_locator
www.pge.com/rebates/

Fun Facts

If every American home replaced just 1 light bulb with an ENERGY STAR qualified bulb, we would save enough energy to light more than 3 million homes for a year, save more than $600 million in annual energy costs, and prevent greenhouse gases equivalent to the emissions of more than 800,000 cars. Source

CFLs produce about 75% less heat than incandescent bulbs. Source

Fluorescent bulbs use electricity to excite gases, which give off ultraviolet light that is then converted to visible light. Source