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Watts is the figure used to show how much power a device consumes.

Watts = volts * amps OR watts / volts = amps, so:

At 120 volts, 1000 watts / 120 volts = 8.33 amps, or:

At 220 volts, 1000 watts / 220 volts = 4.55 amps

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โˆ™ 2011-08-16 10:55:46
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Q: How many amps does a 1000 watt metal halide bulb draw?
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How does a metal halide ballast work?

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