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A Christmas inflatable uses very little electricity. Most draw between about 30 and 150 watts — almost all of it from the blower fan, with the LED lights adding only a watt or two. Run a typical 100-watt inflatable for six hours a day across a 30-day season and it uses about 18 kilowatt-hours, which at the U.S. average of roughly 16 cents per kWh costs a little under $3 for the whole month. Knowing the wattage and your local rate is all you need to work out the cost.
Wattage and running cost per month by inflatable size
The blower is the part that uses power, so wattage tracks the size of the display. The table below shows typical draw and an estimated season cost at six hours a day for 30 days. It uses the U.S. average of about $0.16 per kWh. Check your own blower label and rate to fine-tune the numbers.
| Inflatable size | Typical blower watts | kWh per season* | Est. season cost* |
|---|---|---|---|
| Small (4 ft) | ~30–50 W | ~5–9 kWh | ~$0.90–$1.50 |
| Medium (6 ft) | ~80–120 W | ~14–22 kWh | ~$2.30–$3.50 |
| Large (8–10 ft) | ~150–200 W | ~27–36 kWh | ~$4.30–$5.80 |
| Giant / archway | ~250–350 W | ~45–63 kWh | ~$7–$10 |
*Assumes 6 hours/day for 30 days at $0.16/kWh. Your cost scales with hours run and local rate.
How to calculate the cost to run: watts, kWh, and your rate
The math is one short formula, and you do not need a meter. Multiply the blower wattage by the hours you run it per day. Divide by 1,000 to get kilowatt-hours per day. Multiply by the number of days, then multiply by your price per kWh.
Blower watts, hours per day, and kilowatt-hours per season
Here is the same math worked through. A 100-watt blower run 6 hours a day uses 600 watt-hours, which is 0.6 kWh per day. Over 30 days that is 18 kWh. At $0.16 per kWh that comes to about $2.88 for the season. Swap in your blower's wattage from the label and your own rate from a recent utility bill to get an exact figure.
Why the blower and LED lights cost so little to run
An inflatable looks power-hungry because it is big. But the blower is just a small fan motor that sips electricity, and modern units light the fabric with LEDs that add almost nothing. Compared with a large run of string lights — especially older incandescent bulbs that draw far more current — one or two inflatables are among the cheaper things in a yard display to leave on. The cost only climbs if you run a giant archway with a big blower for long hours every night. Even then it stays in single-digit dollars for most homes.
Amps, circuits, and GFCI safety while it runs all season
Running cost is not the only reason to watch the load. The blower draws a small number of amps, but stacking several blowers and a big light display on one circuit can trip a breaker. Spread the load across outlets on different circuits, and keep the season's setup on a timer so nothing runs unattended.
Lower the cost with a timer or smart plug
The biggest lever is hours, not wattage. Put the blower on a timer or smart plug so it runs only the evening hours you actually want. That cuts the kilowatt-hours directly, and it doubles as a safety measure by shutting the display off overnight. Choosing LED-lit inflatables, running fewer hours on weeknights, and deflating large units when no one is around all trim the total further. Because the running cost is already low, the timer's real value is convenience and safety as much as savings. On a giant display run every night, though, the difference adds up over a season.
Running cost in the wider display: string lights and projectors
An inflatable's power draw is only one line in the season's electricity budget. If you are tallying the whole yard, add the string lights, projectors, and any pathway decorations to the blower figure. A Christmas light projector uses only a few watts. It is one of the cheapest ways to cover a wall or facade with movement. To keep a big inflatable standing through wind while it runs, see how to anchor a Christmas inflatable so the blower is not fighting a display that keeps tipping.
Related yard-display guides
Planning the rest of the yard? Start at the Yard, Inflatables & Projectors hub, or compare the best Christmas yard decorations and the best Christmas light projector for low-wattage ways to fill out the scene without adding much to the bill.
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