CFLs are gaining popularity due to the many benefits that they bring to the environment and economy. More than 120 million CFLs are being used in the UK today but that figure only represents one out of every five bulbs They are up to four times more efficient than incandescent bulbs. You can replace a 100 watt incandescent bulb with a 22 watt CFL for the same amount of light as CFLs use 50 – 80% less energy than incandescent lights.
While initially they may cost more, CFLs are less expensive in the long run as they last much longer than incandescent bulbs. And since CFLs use 1/3 the electricity and last up to 10 times as long as incandescent bulbs, they are much less expensive to operate. You will see a noticeable change in your electricity bills once you change over to CFLs."
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