Do Projectors Use a Lot of Electricity? Projector vs. TV Power Consumption

If you’re thinking about buying a projector, you may have wondered:

Does a projector use a lot of electricity?

It’s a reasonable question, especially if you’re comparing a projector with the TV you already have at home.

The short answer is: not necessarily.

A projector’s electricity consumption depends on its power rating, brightness mode, and how long you use it. And when you compare a projector with a larger TV, the difference may be smaller than you expect.

Let’s break it down.

How Much Electricity Does a Projector Use?

The easiest way to understand projector electricity consumption is to look at its power rating in watts (W).

For example, a projector rated at 100 watts uses about:

0.1 kilowatt-hour (kWh) per hour

If you watch for two hours, that would be approximately:

0.2 kWh

If you watch for four hours:

0.4 kWh

The actual electricity cost depends on your local electricity rate, but the basic calculation is simple:

Electricity used = Power (kW) × Usage time (hours)

For example, a 100W projector used for 4 hours consumes:

0.1 kW × 4 hours = 0.4 kWh

That is the number you can use to estimate the cost on your electricity bill.

How Much Electricity Does the VOPLLS G7 Use?

The VOPLLS G7 has two brightness modes, so its power consumption varies depending on how you use it.

• Standard Mode: 98W

• High Brightness Mode: 110W

That means the G7 uses roughly 0.098–0.110 kWh for every hour of operation, depending on the brightness mode.

For a simple example, imagine watching the G7 for four hours every evening.

Standard Mode

98W × 4 hours × 365 days

= approximately 143 kWh per year

High Brightness Mode

110W × 4 hours × 365 days

= approximately 161 kWh per year

Using an electricity rate of 18.3¢ per kWh as an example, that would be roughly:

• $26 per year in Standard Mode

• $29 per year in High Brightness Mode

Of course, your actual cost will depend on your local electricity rate and how many hours you use the projector.

And most people don't use a projector for four hours every single day, so your real-world annual cost could be considerably lower.

Do Projectors Use More Electricity Than TVs?

This is where the comparison gets interesting.

There isn't one universal answer because TV power consumption varies significantly by screen size, display technology, brightness settings, and model.

A small TV may use relatively little electricity, while a larger TV generally requires more power.

The U.S. Department of Energy notes that smaller TVs use less energy than larger TVs, and ENERGY STAR's TV requirements also scale with screen area.

So comparing a projector with a 32-inch TV isn't particularly useful.

A better comparison is between a projector and a larger TV used for a similar viewing experience.

For example, a projector can produce a 100-inch or larger image without requiring a 100-inch physical display panel.

That changes the equation.

A simple way to think about it:

The important point is that watts alone don't tell the whole story.

You should also consider how much screen you're getting for that electricity.

Projector vs. TV: Think About Screen Size Too

Imagine two people watching a movie.

One is watching on a 55-inch TV.

The other is watching on a 100-inch projected image.

Even if the projector and TV have similar power consumption, they're delivering very different screen sizes.

That's one of the reasons projector electricity consumption can be interesting.

A projector doesn't need to illuminate a large physical panel. Instead, it produces light that is reflected from a wall or screen.

For movie nights, sports, gaming, or family viewing, this makes it possible to create a much larger image without buying an equally large physical television.

How Much Does It Cost to Run a Projector for One Movie?

Let's make this more practical.

Suppose you watch a two-hour movie.

A projector using around 100W would consume approximately:

0.1 kW × 2 hours = 0.2 kWh

At an example electricity rate of 18.3¢/kWh:

0.2 × $0.183 ≈ $0.04

So the electricity used by the projector itself during a two-hour movie would be only a few cents.

Of course, this is only an example. Your electricity rate may be higher or lower, and other equipment such as a streaming device, game console, soundbar, or AV receiver also consumes electricity.

But it puts projector power consumption into perspective.

What About a TV in Standby Mode?

There is another part of the electricity equation that is easy to overlook: standby power.

A TV can remain connected to the wall even when you aren't actively watching it.

ENERGY STAR requires certified TVs to meet strict standby-power limits, with current criteria including very low standby consumption.

This means you shouldn't compare only the "watts while watching" number.

For a fair comparison, consider:

• Active viewing hours

• Standby hours

• Brightness settings

• Screen size

• Automatic brightness control

• Connected devices

The same principle applies to projectors.

Does a Bigger Projector Image Mean More Electricity?

Not necessarily.

This is one of the interesting differences between projectors and TVs.

With a TV, increasing the physical screen size generally means using a larger display panel.

With a projector, changing from an 80-inch image to a 100-inch image doesn't necessarily mean the projector suddenly uses twice as much electricity.

The projector is still producing light from the same light source.

However, projector brightness settings can affect power consumption. A higher-brightness mode may consume more power than a lower-brightness mode.

So if you're trying to reduce energy use, choosing an appropriate brightness setting for your room can make sense.

What Uses More Electricity: A Projector or a 75-Inch TV?

There is no universal answer.

A modern 75-inch TV may use relatively little power depending on its display technology and settings, while another model may consume considerably more.

The same applies to projectors.

The best way to compare two specific products is to look at their actual power consumption figures and calculate them using the same number of viewing hours.

For example:

Product A: 100W
Product B: 150W

If both are used for four hours per day:

Product A:

100W × 4 × 365 = 146 kWh/year

Product B:

150W × 4 × 365 = 219 kWh/year

At 18.3¢/kWh, that would be approximately:

• Product A: $27/year

• Product B: $40/year

This is why looking at the actual power rating is more useful than simply assuming that "projectors use more electricity than TVs."

Are Projectors More Energy Efficient Than TVs?

It depends on what you're comparing.

A projector is not automatically more energy efficient than every TV.

A small, modern TV can consume less electricity than a relatively powerful projector.

But when you compare a projector with a very large television, the result can be much closer than you might expect.

And there's another factor:

What size screen do you actually want?

If your goal is a 100–120-inch movie experience, the comparison isn't really between a projector and a typical 55-inch TV anymore.

You're comparing two different ways of creating a large-screen viewing experience.

What Should You Look at When Buying a Projector?

If electricity consumption is important to you, don't make your decision based on wattage alone.

Look at the whole picture:

1. Power consumption

Check the projector's rated power consumption in watts.

2. Brightness modes

A projector may have different brightness settings with different power requirements.

3. How often you actually watch

A projector used twice a week has a very different annual energy footprint from one used every evening.

4. Your room

A projector doesn't need to run at maximum brightness in every environment.

A darker room may allow you to use a lower brightness mode.

5. Your desired screen size

Think about the viewing experience you want rather than comparing watts in isolation.

So, Do Projectors Use a Lot of Electricity?

For most home users, projector electricity consumption is unlikely to be a major part of the household power bill.

A projector's actual energy cost depends on its wattage, brightness mode, usage time, and local electricity rate.

And when you're comparing a projector with a large TV, don't assume that the projector automatically uses more electricity.

The better question is:

How much electricity does each device use to deliver the viewing experience I actually want?

For someone who wants a huge movie screen, occasional family movie nights, gaming, or a flexible home theater setup, a projector can offer a very different experience without necessarily creating a dramatic increase in electricity costs.

In the end, the number of watts is only part of the story. The size of the screen, how often you use it, and how you use it matter just as much.

Final Tip

Before buying a projector, find its rated power consumption and estimate your own usage.

You can use this simple formula:

Annual Energy Use = Power (kW) × Hours per Day × Days per Year

Then multiply the result by your local electricity rate.

It's a much better way to estimate your actual cost than simply asking whether projectors "use a lot of electricity."