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More CFL Facts

According to ENERGY STAR, if every American home replaced just one standard light bulb with a compact fluorescent bulb (CFL), we would save more than $600 million in annual energy costs (enough energy to light more than 3 million homes for a year) and prevent greenhouse gases equivalent to the emissions of more than 800,000 cars.

  • CFLs use about 75 percent less energy than standard incandescent bulbs and last up to 10 times longer.
  • Save $30-60 or more in electricity costs over each bulb's lifetime.
  • Produce about 75 percent less heat, so they're safer to operate and can cut energy costs associated with home cooling.
  • ENERGY STAR Qualified CFL savings example:*,

Expenditures ENERGY STAR (26-Watt CFL) Standard Incandescent (100-Watt bulb)
Initial Investment$3.00$0.35
Energy Cost$20.80$80
Replacement Cost$0$3.50
Total Cost
$23.80$83.85
Savings per Bulb
$60.05

*Based on 8,000-hour CFL life and 750 hour incandescent life. NOTE: When comparing incandescent or halogen bulbs to CFLs, compare the light output or lumens and not Watts. Watts equal the energy used, not the amount of light.

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