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9 Simple steps – how to change projector bulb?

A quick guide on how to change the Projector bulb:

  1. Power off the projector
  2. Leave to cool
  3. Removal of bulb doors
  4. Removal of equipment components
  5. Remove the bulb
  6. Clean lightroom
  7. Installing the bulb assembly
  8. Bulb replacement door
  9. Reset Lamp Timer

Gadgets you can use when installing projector bulbs.

  • Screwdriver
  • Screws
  • Bulb
  • Microfiber cloth

The bulb timer is useful to help you know how long projector bulbs last and when it needs to be replaced, so it is recommended to reset the bulb timer after replacing the bulb. If you would like to know more about projector bulbs, please continue reading below.

As an important part of a 4k projector, the projector bulb affects the quality of the image. If your projector 4k is not projecting images as brilliantly and clearly as before, it means that the Pericat projector bulb needs to be replaced with a new one. If you don’t know how to change the projector bulb? This article gives you detailed answers to the 9 steps to replacing a projector bulb and what to look for. It makes replacing the projector bulb easier and more convenient so that you can get the best image quality.

How do I change blub in the projector with housing?

  1. Before changing the bulb, make sure the projector and the bulb are in a completely cooled-down state. If you have just used the projector, it is recommended that the projector cool down for one hour before changing the bulb. Avoid burning your skin with excessive heat from the bulb.
  2. Turn off/unplug the projector’s power cord to ensure that no current will pass through the unit when changing the bulb for your own safety.
  3. Place the projector on a smooth surface. You can lay a towel or blanket on the table and place the projector on it to reduce the effect of misalignment of the projector’s shaking components.
  4. To remove the projector assembly, locate the projector’s bulb access panel and use a screwdriver to remove the screws and access panel that hold the projector’s bulb cover in place. Also, if your projector is not covered with screws, you can simply slide it off.
  5. Gently pull the lampshade out of the projector. If there are many dust particles in the bulb chamber, you can use a microfiber cloth to clean it, but please do not touch it directly with your hands.
  6. To replace the projector bulb, lift the bulb handle and gently pull the bulb out of the projector, then insert the new bulb into the projector, making sure it is oriented correctly.
  7. Replace the unit assembly, tighten the screws near the bulb, and re-secure the light chamber door, tighten the screws that hold the shade in place, but do not tighten them too much.
  8. Ensure the projector is properly plugged into a working outlet.
  9. Resetting the bulb timer. Some projector bulbs will reset the timer, but some projectors require you to reset it manually. After changing the projector bulb again, you can simply reset the projector timer to zero.

How to change the projector bare bulb?

  1. First of all, you need to wear gloves for the operation before you operate to change the bare bulb of the projector and avoid touching the bulb directly with your hands.
  2. Disconnect the power to the projector and wait until the projector and the bulb are completely cooled. Avoid overheating the bulb to produce an explosion.
  3. Removing the lampshade, removing the bulb, and cleaning the dust and dirt from the bulb.
  4. remembering the way the power cord was originally connected to the old bulb to facilitate the installation of the new bulb.
  5. Disconnect the power cord from the old bulb. If the power cord is firmly attached to the bulb and cannot be removed, it needs to be cut as close to the bulb as possible.
  6. Remove the original bulb and install the new bulb in place.
  7. Reconnect the power cord to the top of the new bulb and tighten the screws.
  8. Install the lampshade back into the projector and tighten the screws to secure it
  9. Timer devices for resetting the bulb.
  10. Plug in the power to check if the bulb is properly installed.
5 situations that require a new bulb
If you don’t know when you should replace your light bulbs? You can refer to the following.
Popping sounds or strange noises

If you are using your projector and suddenly there is a thump and then the screen stops lighting up completely, it could be the sound of a burned-out projector bulb due to a short circuit. Projector components can fail as the projector bulb ages, and when your bulb burns out completely, you may need to consider buying a new projector.

Indicator light prompt

Some projectors have a lamp timer that flashes to remind you when your projector lamp has reached its end of life. Therefore, we also need to reset the lamp timer after replacing the lamp.

Projection light dimmed

When you use a projector for projection, you may find that the light from the projector is not as bright as it used to be and that the projected image remains dim without much change in conditions of low ambient light. Therefore, making it is necessary to extend the life of the cage by replacing just the bare bulb inside it.

Lack of color accuracy

A new projector lamp will show a vivid and bright image. If you turn on the projector and the image is not as brilliant and the color of the image is not accurate, this may also be caused by the lamp not being bright enough.

Image flicker

An important sign of a problem with the lamp is the flickering of the projected image. The lamp is not bright enough to project a full image. If you turn the projector back off and on again and the image still flickers, this means the lamp is about to fail and needs to be replaced with a new one.

Things to note when changing projector bulbs

  1. Changing the bulb needs to be done after the power is cut off, and changing different brands of projector bulbs is not recommended.
  2. After the projector bulb is prompted to be changed, it is not recommended to turn down the brightness setting to continue using it, as this may cause the bulb to explode.
  3. When performing bulb change, direct hand contact is not recommended and can be changed with gloves or fiber cloth to avoid damage to the bulb.


Projector bulb replacement is a simple task, but there are some detailed aspects of the operation that need attention, as well as making sure that the replacement bulb is the same type as the projector. Many projector lamps do not fail before they reach the end of their lives. Properly replacing projector bulbs and caring for and maintaining them can extend their life. This article details how to change the projector bulb, and I hope you find it helpful.


Where is the bulb in a projector?

The lamp compartment on projectors is usually located underneath the projector unit.

How long should a projector bulb last?

Most projector lamps last between 1500 and 2000 hours, but some can last up to 5000 hours. Most projectors will need one to two bulb swaps during this time.

How can I maximize the lifespan of my projector?

You can set the projector to save energy, schedule cleaning and maintenance, and turn it off completely when not in use.

Can a burnt bulb cause a fire?

If a bulb overheats, it can damage a fixture and melt the socket inside of it, starting a fire.

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