Tips to extend your projector’s lamp life

One of the most expensive parts of the projector, and one which will most likely need to be replaced at some point during the projector’s life, is the projector lamp (also called the projector bulb, or projector lamp module).

Since these lamps can cost a lot of money, it is wise to take certain preventative measures to ensure that you get the most life out of your projector lamp as possible. Even then, it is generally recommended to keep one or more extra lamps spare in case the lamp needs to be replaced at short notice. This will greatly reduce your projector’s down time.                                                                                          

The following is a checklist of things you can do that can help ensure that you are getting the most out of your projector's lamp’s life:

• One of the easiest ways to increase the number of hours that your projector lamp works for is to operate the projector in economy mode where this is available. This means the lamp will operate at lower brightness for a longer period of time. The trade off is obviously the reduction in the quality if the image displayed.
• Lamps that fail before their recommended number of hours have usually been affected by some form of temperature stress. Make sure that when you install your projector into your home theatre, classroom or boardroom, there is plenty of space between the projector's cooling fans and any ceilings, walls, or enclosed compartments. Two feet is usually a good amount of ventilating space to leave to avoid lamps overheating.
• Remember to always let the projector cool down sufficiently before unplugging the power cord to turn off the projector. Even though you may have stopped using the projector lamp, it remains very hot and so the projector’s fans must keep operating to cool the lamp down properly. If the power cord in unplugged, the projector’s fans have no power and cannot operate so the projector bulb will remain hot for longer. This reduces lamp life.
• You should also try to avoid moving your projector unit until the projector lamp has properly cooled as described above. When the projector bulb is hotter its filament becomes more fragile, so you will want to do everything you can to minimize the level of vibration the bulb is subjected to.
• If you frequently turn the projector on and then off again, this can further reduce lamp life. When the projector power is turned on, a surge of energy is directed to the lamp by the projector ballast. This is to kick start the lamp into action. Doing this repeatedly can damage the lamp’s filament.
• As described in the section on filter cleaning and maintenance above, keeping the filters clean enables more air to circulate around the projector. This helps to keep the lamp cool to avoid temperature stresses. Some projector lamps have their own built in filter, which you should clean and maintain regularly just like the normal projector filters.                                                   
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