LED shop lights and strips draw 15–50 watts depending on length and brightness. They're efficient per lumen, but running one continuously (e.g., in a garage) still accumulates cost over time.
| Basis | Cost |
|---|---|
| Per hour (while running, 40 W typical) | $0.008 |
| Per day (6 h/day, 7/7 days) | $0.045 |
| Per month | $1.38 |
| Per year | $16.51 |
| Hourly range (small 15 W – large 80 W) | $0.003 – $0.015 |
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