Quote:
Originally Posted by greenthumbomaha
I imagine the electric bill will skyrocket!
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I don't think it would be that bad, especially not with just 400 watts. My plasma TV draws that much power.
On your electric bill, it will show the price you pay for a "kilowatt-hour" of electricity. That's 1,000 watts for one hour. Mine is about nine cents. I think the most expensive in the US is on the east coast, 20-25 cents.
Divide 1000 by 400, which is 2.5, and that's how many hours a kw hour will run that light. So if your electric rate is close to mine, it's probably about $1 a day if you never shut it off, and 75 cents for an 18-hour day of light.