Technical · 3 min read
How much electricity do underwater lights use?
Far less than people assume — a typical dock runs for pocket change per month.
Real numbers
Our fixtures draw roughly 30–60 watts each. A six-fixture dock at 45 watts running eight hours a night uses about 65 kWh per month — commonly $9–$14 depending on your utility rate.
Reducing it further
A timer or photocell trims runtime, and dimming presets cut draw during off-season months without losing the look.
Last updated 2026-07-02 · Reviewed by Christopher Hamilton, owner and installer.