what are these lights costing you?
whiesoYou have a lighted driveway - there are 5 lamps with 3 fixtures per lamp - the manufacturer states use no more than a 100 watt bulb in each fixture. At a utility company cost of $.12 per kW Hour what are these lights costing you? Oh, and they are on a timer set to turn on at dark, and off at daybreak.
Please show work?
- 9 years ago
- 3
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