How much electricity does a 400 watt bulb use?

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How much electricity does a 400 watt bulb use?

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anonymous · Answer 1

In fact, a 400 watt MH light actually consumes 452 watts, due to the ballast factor. In actuality, the 50 400 watt lights consume 22,600 watts of power each hour, or 22.6 kilowatt hours ( kWh) of hydro each hour.

How much electricity does a 400 watt bulb use?

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How much electricity does a 400 watt bulb use?

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