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    How much unit of electricity when consume a 40 watts bulb burn a hour?

    0  Views: 224 Answers: 1 Posted: 6 years ago

    1 Answer

    A 100 watt light bulb consumes 1 KWH in one hour, you do the math. 


    The average cost for 1 KWH is only around 8C in the US.


    That is why the new government required Mercury filled bulbs will save ENERGY, BUT will cost you MORE MONEY to use.


    A 100 watt incandescent bulb cost less than 1/3 as much as a 100 watt the Mercury filled bulbs, that require a hazardous waste disposal, that will cost you even more money when it burns out


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