Traditional Culture Encyclopedia - Photography and portraiture - What's the difference between a 80-watt lamp and a 120-watt lamp in a month?
What's the difference between a 80-watt lamp and a 120-watt lamp in a month?
1 kW = 1000 W, 80/ 1000=0.08, and one hour is 0.08. A day is 24 hours and a month is 30 days, so a month is: 0.08x24x30=57.6.
0. 12x24x30=86.4
86.4-57.6=28.8
The difference is 28.8 kwh.
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