első találat google:
Schindler found that white required 22.6 watts, while black came in a tad higher at 23.2 watts. With a 20-inch (50.8-centimeter) LCD, black required 6 percent more energy than white.
második találat:
LCD Monitors are less sensitive to color, some studies show that white uses 6% less energy whilst other show that there is no difference at all between colors.
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