Best Smart Gadgets reviews products independently. When you click links to buy products we may earn commissions to support our work.

How many watts does a projector use?

Do you have a projector? Are you curious about how many watts it uses?

If so, read on. In this blog post, we’ll take a look at the wattage of various projectors and provide some tips on how to save energy

Types of Projectors and Estimated Power Consumption Figures

Battery-powered Projectors

The battery-powered projector is a relatively new breed and is also referred to as portable or pico projectors. It functions using an internal LiIon Battery, which powers the device’s components.

The battery-powered projector consumes between 10-90W of power, depending on its size and performance.

If you need to use the projector for an extended period of time, you can directly plug it into a wall outlet. This will allow you to bypass the battery and use the projector as a regular one.

Additionally, the battery-powered projector is portable so you can take it with you wherever you go without having to carry its charging brick.

Though small and lightweight, battery-powered projectors cannot match up with regular-size ones when it comes to features. The battery-powered projectors are meant for casual use and not the preferred kind of product you would want in your home theatre.

LED projectors

You might be wondering how many watts does a led projector use how many watts does a led projector use? LED projectors have a size that is perfect for portable use, but also come equipped with all of the features you would find in more expensive models. LED projectors use LED lights, which use very little power. 

This means they don’t cost a lot to run. LED projectors to use between 30-150 watts of power, depending on the projector features. Many LED projectors are available for less than $300. These projectors use very little power, often less than 100 watts.

DLP projectors

DLP projectors are a type of projector that uses older technology. Even today, this technology is still relevant. Compared to LED projectors, DLP projectors offer more brightness.

However, one downside to DLP projectors is their high power consumption. They use a lot of power – anywhere from 150-350 watts on average.

Another downside is the lamp life. The light bulb in a DLP projector has a lifetime of around 2000-3500 hours. It can be used for up to 3-4 hours at a time.

LASER projectors

Laser projectors are a new type of projector that uses light from lasers to project an image on a screen. They solve many of the problems that DLP and LED projectors have.

Laser technology is a safe and long-lasting option that you can use for hours on end without any issues. However, laser projectors typically require 250W or more of power to operate.

How Many Watts Does a Projector Use?

Different types of projector and estimated power consumption:

Battery-powered projector: 10-70 Watts
LED projector:30-150 Watts
DLP projector: 150-350 Watts
LASER projector : >250 Watts

How can you Reduce the Amount of Electricity a Projector Uses?

Managing your electricity bill is important and can help you save money. 

Here are some tips for reducing costs.

Energy-Efficient Model

To save energy, some projectors have an eco mode that turns off the screen when it’s not being used. 

Optimal Viewing Settings

You can conserve energy and the lifespan of your projector light by checking the settings of the image. Lowering the brightness, using saturation settings, or taking note of your minutes or hours of usage on the lamp will help you save electricity.

Some models have a feature that turns them off automatically when they get too hot or if they reach a certain temperature. This saves electricity and reduces the risk of the projector overheating.

Moderate Usage

It is best to not overwork your projector. This way you won’t wear out your projector and it will last longer.

How to Measure the Power Consumption of your Projector ?

Find the wattage of your projector

If you’re wondering what kind of watts your projector has, the specs will tell. Most modern models are labeled with important information like this so make sure to check them before spending any money.  

You can also lookup online or consult an owner’s manual for more details on how much power each model uses. 

To double-check the power consumption of your projector, you can learn how to use a multimeter and read out its wattage through an easy digital display on this device.

The number of watts shown on the label is a measurement of how many watts your projector will use each hour it’s turned on. So if you see a 50W label, your projector will use up 50 watts every hour it runs.

Calculate your watt-hours per day

To calculate how many watts your projector uses every day, use this formula: (Device power consumption in watts) x (Hours used per day). The device power consumption is the number you can find on your projector. Multiply that number with the number of hours you use your projector per day. For example, A 150W projector that is used for 2 hours a day will use 300W per day.

Convert your watts to kilowatts

To figure out how much power your projector uses each month, you need to convert watts to kilowatts. There are 1000 watts in 1 kilowatt.

The calculation goes like this: (Device consumption in Wh) / (1000) = (Device consumption in kWh).

For example, a 150W projector (150W) divided by (1000) equals (.15 kWh).

Check your electricity bill

You will need to know the rate per kilo-watt that your utility company charges in order to get an idea of your power consumption. This information should be on your monthly electricity bill.

For example, let’s say our electric company charges $0.50 per kilowatt-hour. To find out how much our projector costs to use in economic terms, we multiply the rate per kilowatt by the total amount of kilowatts used each day or month.

Calculating your monthly consumption

Calculating your monthly consumption is just as easy as the daily one. The calculation goes like this: (Daily consumption in kWh) x (Days in 1 month) = (Monthly usage estimate).

With our example projector, we got: (0.15) x (30) = (4.5). This means our projector uses 4.5 kWh every month.

If you want to find out how much it costs to use a projector: multiply the monthly usage estimate by the utility company’s rate per kilowatt-hour.

For our 0.15 kWh projector, we found that: (4.5) x (0.50) = (2.25). This means that if we use the projector for 2 hours every day, our cost for monthly consumption would be about $2.25 at a rate of $0.50 per kilo-watt-hour.

What to do if you can’t figure out your Projector’s Power?

Contact customer support

Contacting customer support is the best way to get your power consumption readings accurate. Most projectors come with professional customer support services that will be more than happy to help you solve any problems you have with your projector.

Use a watt measuring device

You can find out how much power your projector uses by using a watt measuring device. This is a small device that you plug into the wall.

Then, you plug your projector’s electrical output into the watt measuring device. The readings on the watt measuring device will tell you how many watts your projector uses.

How to Calculate your Kilowatt-Hour consumption manually?

If you don’t have access to electricity prices or projector consumption data, you can still get a good estimate of your projector’s power usage by counting the utility meter manually.

Here are some steps to follow:

  • The first thing you need to do is turn off all the electrical devices in your home, except for the projector. You also need to unplug any plugs from their sockets. Once you have turned off and unplugged everything, you can move on to the next step.
  • Next, take a reading of your utility meter to find out the starting point. This will help you figure out how much power your projector uses. If you can’t get to your utility meter, you won’t be able to manually measure how much power your projector uses.
  • If you want to test your projector’s electricity consumption, you should set it to run for at least one hour. Don’t worry if it runs for a few hours – you can always figure out the projector’s hourly usage by dividing the total usage by the number of hours it was on.
  • Now it’s time to do some math. You need to get out a calculator and subtract the new reading from the baseline reading. This will tell you how much your projector uses in an hour. Remember to convert Kilowatts to Watts so the consumption number is more standardized.

How to Measure the Power Consumption of Your Projector


Does a projector use a lot of power?

Projectors use different amounts of power, anywhere from 150 watts to 800 watts. The cheapest and most basic projectors use up to 300 watts on average, which costs $0.03 or 3 cents per hour.

How many watts does an overhead projector need?

The wattage for projectors varies depending on their size. Smaller projectors have 50 W, while larger ones can have up to 800 watts.

How many watts does a mini projector use?

Projectors can vary greatly in how much power they use. The mini projectors use around 50 watts of power, while the larger ones can use 150-800 watts or more.

How many watts does a portable projector use?

The smaller portable projectors use 50 watts of power, while the larger ones can range up to 150-800 watts of power.

How many watts does a TV projector use?

Projector TVs use different amounts of electricity. The most common amount of electricity used is 300 watts per hour. However, some projector TVs can use up to 800 watts per hour.

Is projector better than television?

People often think that projectors give a more comfortable viewing experience because of the larger screen size and less brightness compared to TVs. This is similar to how it is at the movies.

How long does a laser projector last?

Laser projectors typically have a lifespan of 20,000 hours, while lamp projectors have a lifespan as low as 2,500 hours.

Is a projector cheaper than a TV?

TVs are becoming increasingly cheaper and have better performance. This is happening faster than projectors. Although you can find cheap projectors, they don’t have the same picture quality as TVs.

How long does a projector last?

Most older projector lamps lasted between 1,000 and 2,000 hours. More recent projector lamps usually last between 2,000 and 4,000 hours depending on how they are used.

Can a projector replace a TV?

If you usually watch videos and movies on streaming services, then a projector can be a good substitute for a TV. Just remember to buy some blackout curtains to block any ambient light.

What uses more power projector or TV?

Projectors use more power than televisions to properly power their lamps. However, some projectors are useless or have the same amount of power as an HDTV that uses 250 watts of power.


So, what projector do you have? How many watts does it use? And are you going to make any changes in order to save some energy?

We hope that this blog post has helped answer some of your questions and given you a few ideas on how to save energy. Thanks for reading!