How Much Does It Cost to Run a Home Projector in the UK? (2026)
Lamp projectors draw 250 to 400 watts, several times a TV of similar picture size. LED and laser projectors use a third to half as much and their light sources last far longer.
A typical home projector (250 W) costs £0.066 per hour, or about £3.95 per month at 2 hours a day in the UK. Average running cost
| Wattage | Per hour | Per day | Per month | Per year |
|---|---|---|---|---|
| Low 100 W | £0.026 | £0.053 | £1.58 | £19.21 |
| Typical 250 W | £0.066 | £0.13 | £3.95 | £48.03 |
| High 400 W | £0.11 | £0.21 | £6.32 | £76.85 |
Formula: watts ÷ 1000 × hours × price per kWh. Typical use is 2 h/day ≈ 182 kWh per year.
One hour of a home projector (0.25 kWh) is the same electricity as
- 2.5kettle boils
- 5.0hours of a fridge
- 17phone charges
- 28hours of an LED bulb
In the UK, with electricity at 26.3p per kWh (source: Ofgem price cap 1 Oct–31 Dec 2026, 2026-10), a typical home projector costs £0.066 per hour and about £48.03 per year at 2 hours a day. Each £1.00 of electricity buys roughly 15.2 hours of use.
How to lower the cost of running a home projector
- Use eco lamp mode. It cuts power by 20 to 30 percent and extends lamp life.
- Watch in a dark room so you can run lower brightness.
- Unplug it between uses. Some models keep fans running in standby.
In standby it draws about 1 W, which adds roughly 9 kWh (£2.31) per year if it is never unplugged.
Frequently asked questions
How much does a projector cost to run per hour?
A 250 watt projector uses 0.25 kWh per hour, roughly 2 to 3 times a large TV.
Are laser projectors cheaper to run?
Yes, typically 100 to 200 watts and no lamp replacements.
Does a projector use electricity in standby?
Around 1 watt for most, more if network standby is enabled.
Compare with
Cost by region
US states
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- West Virginia
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Canadian provinces
Related appliances
- Smart Speaker3 W typical
- Streaming Stick or Box4 W typical
- Soundbar25 W typical
- Television100 W typical
Use the generic electricity cost calculator · Which uses more? Take the quiz