Compact fluorescent light bulbs are four times more efficient and last up to 10 times longer than incandescent light bulbs. A 22 watt CFL has about the same light output as a 100 watt incandescent. Compact fluorescent light bulbs use 50 - 80% less energy than incandescent light bulbs.
Although initially more expensive, you save money in the long run because compact fluorescent light bulbs use 1/3 the energy and last up to 10 times as long as incandescents. At 8 cents per kWh, a single 18 watt compact fluorescent light bulbs used in place of a 75 watt incandescent will save about $45.
By replacing a single incandescent bulb with a compact fluorescent light bulb you can keep a half-ton of CO2 out of the atmosphere over the life of the bulb. If everyone in the U.S. used energy-efficient lighting, we could retire 90 average size power plants.
Newer compact fluorescent light bulbs give a warm, inviting light instead of the "cool white" light of older compact fluorescents. They use rare earth phosphors for excellent color and warmth. New electronically ballasted compact fluorescent light bulbs don't flicker or hum.
Compact fluorescent light bulbs can be applied nearly anywhere that incandescent lights are used. 3-way CFLs are also now available for lamps with 3-way settings. Compact fluorescent light bulbs are also available for lights using a dimmer.