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Depends of what you mean by electricity. The 350 Watts says for each hour you have the light on you consume 350 Watt Hours of electricity. This is how you are charged by the Electric Company. Depending on where you live you may pay about 12 cents per 1,000 Watt hours or 1 Kilowatt hour. So your bulb costs about 4 cents per hour in electricity. To compute the current you need to know the voltage. Watts = Current x Volts.

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โˆ™ 2010-06-02 12:39:25
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Q: How much electricity does a 350 watt metal halide light use?
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It uses 100 watts, which means that it takes ten hours to use up 1 kilowatt-hour.


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