Our test results show a wide variation in performance of CFL bulbs.
A 100W traditional incandescent bulb running for 3 hours a day costs $25 a year in electricity. A 20W CFL equivalent costs just $5 to run for that long. So a CFL will pay for itself in just a few months – and it’ll last longer as well.
But you need the right bulbs – there's still a big difference between the best and worst on the market.
Highlights of this report
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