What size generator or power station for an outdoor floodlight? (100+ W)
To run an outdoor floodlight, choose at least
100 W running.
100 W running.
An outdoor floodlight draws about 50 W while running. Pick a generator, inverter or power station rated comfortably above these numbers.
Battery runtime calculator
Estimated runtime—
Assumes about 85% usable capacity. Motors need extra headroom for startup surge.
How long a power station lasts
| Power station | Estimated runtime |
|---|---|
| 300 Wh | 5 h 6 min |
| 500 Wh | 8 h 30 min |
| 1,000 Wh | 17 h 0 min |
| 2,000 Wh | 34 h 0 min |
| 3,000 Wh | 51 h 0 min |
Sizing guide
| Minimum running watts | 100 W |
| Minimum starting watts | 100 W |
| Suggested inverter | 100 W or higher |
See also outdoor floodlight wattage and running cost.
FAQ
How many watts does an LED floodlight use?
Typically 20-150 watts depending on brightness.
How can I lower floodlight costs?
Use motion or dusk-to-dawn sensors so it only runs when needed.