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13 July 2011 - 14:05, by , in news, 1 comment
When shoppers look for light bulbs, one of the first things they check is the wattage. Starting next year, though, “lumens” will be the measure consumers will want to look for on light bulb labels.   “Wattage only tells you how much energy a bulb uses, but that is not as helpful with all the...