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After thousands of hours, most of the 13- to 15-watt compact fluorescent lights we are testing still work. That's good news, considering that equivalent 60-watt incandescents typically last only 1,000 hours. All of the CFLs qualified for the Energy Star program.
But the light went out early on seven of nine Feit Ecobulb ESL13T bulbs, which cost about $2.25 apiece. Most of these failed between 3,300 to 3,900 hours of lighting in our tests, which cycle them on and off. The package claimed 8,000 hours average life. A better choice was the Feit Ecobulb Plus ESL13T/Eco ($2.66). All 10 samples of that model passed a 5,000-hour preliminary test, and they are being tested further, along with other brands. So far, here are some other good choices: GE 8,000 Hour Long Life ...