Compact Fluorescent Bulbs

Compact fluorescent lights are four times more energy efficient than incandescent bulbs, and they are better for the environment.  Compare the purchase price and cost to operate with our CFL Calculator.

Choosing the Right Bulb

You might think that compact fluorescents can be too harsh and bright compared to traditional bulbs.  But, knowing how to choose the right CFL for the right task will go a long way toward making you happy with your selection.

• Color temperature: The lower the color temperature, the warmer the light.  Warmness (red) or coolness (blue) can be measured in degrees Kelvin.  Soft white bulbs have a temperature of about 2700 K while "daylight" bulbs measure approximately 3400 K.
• Dimmable Bulbs: Standard CFLs don't work with a dimmer.  You must buy a bulb that is specifically made to work with a dimming switch (check the package).
• Unusual Fixtures: Energy-saving bulbs for chandeliers or bathroom vanities are coated in a phosphor mix to soften the light and mimic the warmth of an incandescent.

If every home in America replaced just one bulb with an Energy Star qualified CFL, it would save enough energy to light more than 3 million homes, and it would prevent greenhouse gas emissions equivalent to that of more than 800,000 cars annually.  Compact Fluorescents last 10 times longer too.  But, when they do finally burn out, you shouldn’t throw them away. 

Recycling CFL Bulbs

CFLs contain a very small amount of mercury that is sealed within the glass tubing.  It’s equivalent to the amount of mercury that would cover the tip of a ball-point pen.  The Environmental Protection Agency (EPA) recommends taking your compact fluorescents to a recycling center. 

Residents of Davidson County can drop them off at Nashville’s East Waste and Recycling Facility off of Trinity Lane.  Its open 7 days a week (Mon-Sat 7:30 a.m. to 5 p.m. & Sun from Noon to 4 p.m.).

Home Depot also recycles CFLs at all their retail locations.  Bring your expired, unbroken bulbs to the returns desk.  They are managed responsibly by an environmental management company.

Cleaning Up a Broken CFL

• Open a window and leave the room for at least 15 minutes.
• Clean up as much of the bulb as you can without using a vacuum.
  • Wear rubber gloves.
  • Wipe the area clean with a damp paper towel.
  • Tape can be used to pick up small pieces and powder.  
• Seal all debris in a plastic bag.
• Wash your hands.