Underwriters' Laboratories (UL) is a nationally recognized, nonprofit safety-testing agency for the US. UL is also affiliated with the Underwriters' Laboratories of Canada (CUL).
The National Electrical Code, as well as laws in the majority of states, requires that lamps and fixtures be tested by a recognized, independent safety-testing agency before they can be legally sold and installed. Electricians in some areas will refuse to install non-UL fixtures.
When shopping for lamps and fixtures, look for the term "UL Listed." And don't be fooled by statements like "All fixtures are manufactured from UL-approved components."
The EPA estimates that it saved about $14 billion in energy costs in 2006 alone. The Energy Star program has helped spread the use of LED traffic lights, efficient fluorescent lighting, power management systems for office equipment, and low standby energy use.
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