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In ideal conditions, about 6W

Amps x volts = watts

500ma = 1/2 amp (1000ma to 1a)

0.5 X 12V = 6W

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12y ago
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9y ago

Watts aren't consumed per hour, as Watts are defined as joules per second. The wattage of a described unit would be 12 times .5, or 6 watts.Ê

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Q: How many watts are in a 500 ma 12v dc?
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