Yes. Compact fluorescent bulbs (CFLs) use substantially less energy (and cause fewer emissions of greenhouse gases) than an equivalent incandescent even when the energy necessary to manufacture the bulbs is considered. This is for several reasons: (1) a CFL uses substantially less energy when it is on than an incandescent bulb does, 75% less, (2) one CFL will last up to ten times longer than an incandescent, so an appropriate comparison includes 8 or more incandescents for every CFL, and (3) manufacturers tell us it takes much less energy to manufacture a CFL than the energy it will use over its lifetime. ENERGY STAR recognizes CFLs based on the energy used while the bulb is on, helping consumers choose the bulb with lowest overall energy use and green house gas emissions.
The simple choice for energy efficiency.
energy efficient products
ENERGY STAR products are independently certified to save energy without sacrificing features or functionality. Saving energy helps prevent climate change. Look for the ENERGY STAR label to save money on your energy bills and help protect our environment.
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ENERGY SAVINGSat home
energy savings at home
Improving your home's energy efficiency with ENERGY STAR can help to lower high energy bills, improve comfort and reduce greenhouse gas emissions. Learn about the many ways to save in your home and track your progress with "My ENERGY STAR" - your new dashboard to savings.
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ENERGY EFFICIENTnew homes
energy efficient new homes
A new home that has earned the ENERGY STAR label has undergone a process of inspections, testing, and verification to meet strict requirements set by the US EPA. ENERGY STAR certified homes use 15-30% less energy than typical new homes while delivering better comfort, quality, and durability.
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ENERGY STRATEGIES FORbuildings & plants