Find out what your electric company charges you per kw hour. Now kw =1000 watts, so say you pay .12 per kw hour. A 100 watt light bulb is 1/10 of 1000 so divide .12 by 10. This would
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1. Determine the wattage of the light bulb. The wattage is clearly marked on the bulb. You may have to unscrew the bulb from the fixture to read the wattage. 2. Determine the time
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To run an EnergyStar 40 watt bulb (150watt incandescent
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Does '1 2"' mean one twoinch fluorescent? Or a 12 inch? Or do you mean one twofoot fluorescent? In any case, just multiply the power level in watts times 24, and that will
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