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Discussion in 'Growing Marijuana Indoors' started by lhow2000, Jan 16, 2006.
Anybody know how much energy a 1000 watt hps bulb would use on 24 hours a day?
It would use 24 kilowatt-hours per day.
1000 watts = 1 kilowatt
1 kW x 24 hours = 24 kW hrs
1000W, btw, will be a noticable spike in your electricity bill.