How much does a led shop light / strip cost to run?

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.

Typical running cost (18.83¢/kWh, U.S. average, 2026-04)

BasisCost
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
Save: Use motion sensors in workshops and garages to eliminate unnecessary runtime during vacant hours.

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