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Can I Replace the Projector Lamp with a LED Bulb?

Can I Replace the Projector Lamp with a LED Bulb?

Are you looking to regain the vividness in your projected images by replacing your lamp with an LED bulb? If so, then you are at the right place. 

The world of projectors can become confusing, especially when it comes to bulb replacement. However, with accurate information from well-conducted research, this process can seem less complicated. 

LED bulbs in projectors have grown in the recent past, with most modern projector models adapting this light source technology. A lot of consideration is paid towards their more eco-friendly nature as well as a longer lifespan compared to traditional projector light sources, making them grow in popularity.

Can you use any bulb in a projector?

The short answer to this question is no. Not all projector bulbs are the same. 

In many cases, bulbs are manufactured based on the projector and sold in different quality grades.

Can I replace the projector lamp with an LED bulb?

projector lamp and LED bulb

Yes. Some of the projector lamps can be replaced with LED bulbs. However, this will not be a straightforward task. 

LED bulbs are a newer technology in the market, and replacing your projector lamp with them may require redesigning your heat sink, internal motherboard, or transformer to achieve optimum results.

Projector lamp vs. projector bulb

projector lamp and projector bulb

When it comes to projector lamps and bulbs, you may think that these two terms can be used interchangeably. However, that is not the case. 

A projector lamp is a complete component of your device made up of a projector bulb, a reflector, and a cage housed in one unit-also known as a lamp housing.

A projector bulb, on the other hand, is just that, a bare bulb. It is one part of the lamp. Albeit a risky and complicated process, replacing it requires fixing a bulb into a housing component.

Things to consider before replacing the projector lamp with an LED bulb

When it comes to replacing a projector lamp with an LED bulb, there are a few things that you need to bear in mind before you get started. Let’s get right into it:

Lumen output

light generated by a projector

Lumens measure how much light the bulb gives out in total. Most projectors split white light into green, blue, and red layers. 

This means that from the light generated by the bulb, only around 20% of it will make it to the screen. A poor lumen output will result in blurry images that are difficult to see.

To achieve clear and crisp images, consider the range of lumen that the projector was designed for. The LED bulb that you are looking to fit needs to be roughly within the projector’s lumen range or even higher. 


ventilation system of a projector

When retrofitting the projector with an LED bulb, you need to consider the heat generated given the confined space that is inside the projector. This is critical as excess heat can shorten the lifespan of an LED bulb dramatically.

Implement a cooling device such as a fan, chipset cooler, or create a vent to ensure that your device does not heat up at any given moment once the LED bulb has been fitted.


Another critical element you need to think about is the projector’s programming. Most projectors are exclusively designed to work with particular bulbs and may reject or ignore LED bulbs.

Therefore, you need to find a way of cheating the projector’s system. One of the easiest ways to achieve this is to locate and disable your projector’s optocouplers. This will fool the projector’s motherboard, making it believe that the fitted LED bulb is legitimate.


Cost is one of the driving factors that make many users consider going through the long process of replacing projector lamps with LED bulbs. 

Where the projector lamp seizes to function for one reason or the other, it is much more costly to purchase another lamp than to replace it with an LED bulb. 

How do I replace the projector lamp with an LED bulb?

The entire process of replacing the projector lamp with an LED bulb may involve technical applications that can seem to take ages, but the wait may very well be worth it in the long run.

There are many easy-to-follow video tutorials available on the internet through both google search and youtube that detail precisely how you can replace your projector lamp with an LED bulb. Here is one:

Replace DLP lamp with LED Part 1
Replace DLP lamp with LED Part 2

General precautions to take when replacing the projector lamp with an LED bulb

There are a few things that you need to keep in mind while replacing your projector lamp with an LED bulb that is extremely important not only for your health but also for the safety and longevity of the projector.

  • Before you attempt to replace the projector lamp, it is crucial to ensure that the device has been shut down, especially if it has been in use. Unplug and leave it for at least an hour or longer.
  • Most components of the projector are fragile and need to be handled with care. Gently open the projector using the right tools on a clean table or workstation to avoid unnecessary damage.
  • When cutting the wires, leave an allowance of a couple of inches from the connector to allow for easier reconnection at the time or reassembling your projector.

Benefits that come with an LED bulb

zoom in a LED bulb

LED bulbs are a more popular and reliable option when it comes to replacing projector lamps. Some of its notable benefits include:

  • LED bulbs maintain optimum brightness, which helps achieve clearer images.
  • LED bulbs are highly energy-efficient, which helps save money on electricity bills in the long run.
  • Compared to projector lamps, LED bulbs come with a much inexpensive price tag.
  • They come with a long lifespan. Once correctly fitted, LED bulbs can go for at least seven years before you can think about replacing them.
  • LED projector bulbs have an operational running time of more than 20,000 hours. This makes them ideal for usage in hard-to-reach areas.
  • LED bulbs produce a minimal amount of heat which makes them ideal for a temperature-controlled environment.
  • LED bulbs give out light almost instantly. 


Although some projectors are designed to allow only specific bulbs for their lighting, others can be modified to accept and function with modern LED bulbs. The LED bulbs can make an affordable option for your projector while giving you high image quality compared to other traditional bulb projectors.

The process of replacing a projector lamp with an LED bulb may seem complicated, but it is possible. You can easily accomplish it by carefully following the tutorials in the videos provided above.

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mohamadreza saberi

Tuesday 30th of November 2021

Hi, I have a Hitachi video projector that I want to turn on without a light bulb. In other words, I want to replace it without a light bulb and led. But I do not know how to disconnect the high voltage circuit and start the device. Please help me thank you Hitachi a101

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