CFL myth busters
Get the true scoop on these energy-saving light bulbs
If you haven’t switched to compact fluorescent light bulbs — or CFLs — what’s stopping you? Do you imagine they’re too expensive? Afraid of harsh light? Think the bulbs won’t fit in your light fixtures? Concerned about disposal? This month we’re going to explore the truth behind some CFL myths.
There are some misconceptions about CFLs. It pays to know the facts:
- Use up to 70 percent less energy*
You can replace a 60-watt incandescent light bulb with a 14- to 18-watt CFL and get the same amount of light, or lumens, while using far less energy.
- Last up to 10 times longer*
An ENERGY STAR® CFL is estimated to last about 8,000 hours. You’d likely have to buy 10 incandescent light bulbs to cover the same number of hours. That means you’ll save on replacement costs as well as electricity. So, even though CFLs initially cost a little more to buy than incandescent bulbs, you’ll save money over the long run (see our comparison chart). To maximize lifespan and energy savings, ENERGY STAR recommends using CFLs in fixtures left on for more than 15 minutes.
- No flickering or humming
Today’s CFLs have better electronics than the old fluorescent lighting — no annoying flickering or humming. They may take a few moments to come up to full brightness (that’s nice when you first wake up).
- Available in warm tones
For a light closest to incandescent light bulbs, choose CFLs labeled “warm light.” These should have a color temperature rating of 2700 to 3000 K (Kelvin scale). Bulbs with higher K ratings produce cooler light that is good for reading or task lighting.
- Range of styles to fit most fixtures
Check your fixtures and make a list before heading to the store. Look for specially marked bulbs for three-way switch, enclosed fixtures and outdoor applications. See the ENERGY STAR Choose a Light Guide for assistance.
The most cost-effective, energy-saving technology
available now
There’s some discussion whether LED lighting is a better option than CFLs. LEDs have come a long way and promise even higher efficiency than CFLs and a lifespan of at least 25,000 hours. However, upfront costs are much higher and quality products are harder to find. They currently work best for task lighting, under-cabinet kitchen lights and recessed cans. ENERGY STAR-qualified LEDs meet high performance standards.
Currently, CFLs generally remain your best bet for savings and quick payback. Through Dec. 31, 2010, you’ll find reduced prices on ENERGY STAR-qualified CFLS at many retailers.
Incandescents are going away
To help the country save energy, Congress passed a law that phases out incandescent light bulbs beginning in 2012. Why wait to start saving energy? Make the switch now.
Disposal options
All fluorescent lights contain a small amount of mercury and should be disposed of properly. You can now drop off unbroken CFLs to Home Depot and Ikea for disposal. See our Disposing of CFLs section for a complete list of CFL disposal facilities.
Learn more about CFLs, and also find energy-saving lighting tips, in our Lighting section.