How Many Watts Does A Projector Use

by Matthew David | Updated: 09/14/2023

How Many Watts Does A Projector Use

Hey there! So you’re thinking about getting a projector for your home theater or office presentation needs, but you’re wondering just how much power it’s going to suck up. That’s a smart thing to think about!

Projectors can vary a lot in how much electricity they use depending on the type, features, and specs. But with this guide, you’ll know everything you need to figure out approximately how many watts your projector will be drawing.

We’ll break it down by the different kinds of projectors, what affects the power consumption, how to actually measure it, and most importantly – how to get the most energy efficiency for your buck. Let’s dive in!

Types of Projectors

Battery-Powered Projectors

These tiny projectors are like a smartphone – they have a built-in battery so you can easily take them anywhere. A battery-powered projector uses between 10-70 watts.

The little Viewsonic M1 mini only needs 8 watts! But higher-end portable projectors like the LG Cinebeam PF50KA use up to 65 watts since they have more features.

The tradeoff is that tiny battery-powered projectors can’t compete on brightness and screen size. So they’re best for casual use, not home theaters.

LED Projectors

LED projectors give you more power and screen size than battery-powered ones, while using less electricity than traditional projectors. The LED light source makes them efficient, with power draw ranging from 30-150 watts.

For example, the popular Vankyo Leisure 3 LED projector uses about 50 watts. And most LED projectors costing less than $300 consume under 100 watts. Pretty energy savvy!

DLP Projectors

DLP is an older projection tech that’s still widely used today. A DLP projector gives you super bright images, but hogs more power – from 150-350 watts on average.

The bulbs in DLP projectors use the most electricity. Like the Viewsonic PA503W rated at 260 watts, with the 200W bulb eating up most of that juice.

DLP bulbs also don’t last forever, typically just 2000-3000 hours. To extend the expensive lamp life, DLP projectors have “eco modes” to dial down brightness and power draw.

Laser Projectors

The latest projection tech is laser projectors. Lasers give an intense image and last longer than bulbs, but need over 250 watts to run.

So the brilliant picture comes at an energy cost. For example, the popular Vava 4K UST laser projector uses 350-360 watts.

But hey, at least you know your electric bill is paying for an amazing cinematic experience!

Key Factors Affecting Power Consumption

Clearly projectors use varying amounts of power. But what causes those differences? Here are the key factors:

Projection Technology

As we saw, DLP and laser projectors need more watts to shine compared to LED models. Different technologies have different energy demands.

Light Source

A traditional high wattage bulb consumes way more than an efficient LED or laser. The type of light source directly impacts energy draw.

Screen Size

Naturally, the bigger the image you want to project, the more power the projector will use to create that expansive picture.

Brightness (Lumens)

Lumens measure projection brightness. More lumens equals more watts flowing through that light source to dazzle your eyes.


Projectors with bells & whistles like onboard streaming or sound use more electricity to power those fancy extras. More features = higher power budget.

Measuring Exact Consumption

Got a projector and want to know exactly how many watts it’s using? Get an electricity usage monitor like the P3 P4400.

Just plug it into the wall, connect your projector, and it displays real-time voltage, amps, and wattage draw. Now you’ll know if your “eco mode” actually saves power!

These monitors also calculate the kilowatt hours used over time. So you can compare projectors for efficiency.

Estimating Cost Efficiency

Let’s talk dollars and cents. We know projectors vary in power use, but how much is that gonna cost you per month?

First, find your electricity rate on your utility bill. Let’s say it’s 15 cents per kWh.

Then multiply that rate by your projector’s wattage to get the hourly cost.

For example, a 300 watt projector at 15 cents per kWh would be:

300 watts x $0.15 per kWh = $0.045 per hour.

Run that puppy for 4 hours every day, that’s $5.40 per month!

For comparison, a TV might use 200 watts, costing you $3.60 monthly. So projectors do tend to be more power hungry in general.

But there are very efficient LED and laser models if you want to pinch pennies!

Reducing Power Usage

Looking to cut down your projector’s power appetite? Here are some tips:

Following these easy tips will help minimize the power your projector guzzles.


Now you know all about how many watts projectors use!

The most important things are:

A projector might need more watts than a TV. But being mindful of your model’s consumption will help keep those electricity bills in check.