What compact fluorescent light bulb do I buy to replace a 60-, 75-, 100- or 150-watt regular bulb?
While a regular (incandescent) light bulb uses heat to produce light, a fluorescent bulb creates light using an entirely different method that is far more energy-efficient – in fact, 4-6 times more efficient. This means that you can buy a 15-watt compact fluorescent bulb that produces the same amount of light as a 60-watt regular incandescent bulb. Plus fluorescent light bulbs last up to 13 times longer and use 2/3 to 3/4 less electricity than incandescent bulbs with similar lumen ratings. Here are the watts needed by regular incandescent bulbs and compact fluorescent bulbs to produce the same amount of light.
