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Unread 01/19/2008, 11:26 PM   #26
Plato
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Join Date: Nov 2003
Location: NC
Posts: 638
ycnibrc if you run 1000 watts on 220v you end up with a load of 4.55 amps verses 120v which would be 8.33 amps but the power company charges for kilowat hours used. One kilowat hour is 1000watts used in one hour. One 1000 watt bulbe uses one kilowat in one hour either ran off of 120 or 220.

My power company currently charges .0779 cent per kilowat hour. So if I run both lights 2x 1000= 2000 watts or 2 kilowat hours a day for 12 hours for 30 days a month = 720 kilowat hours x .0779 = 56.09 extra on every months bill.


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