Note: Projector bulbs, usually called projector lamps, are one of the few user replaceable projector parts. Unlike a car headlight or standard light bulb, a projector replacement lamp module varies by model. With metal halide lamps, you'll notice a dimming of the image brightness as the lamp loses power. The number one cause of lamp failure is excessive heat. Projector bulbs typically last about 2,000 hours on most models. Some of the newer projectors offer extended lamp life of 3,000 hours, and a few are up to even as much as 5,000 hours. Keep in mind however that some projector bulbs won't make it all the way to their estimated life spans. If you operate your projector in a warm environment that is not adequately ventilated, or at higher elevations, this can reduce lamp life. Also, failing to keep the air filter clean may reduce lamp life as well. And some lamps will just fail sooner than others--estimating average lamp life is not an exact science. Read More about The Cost of Replacement Bulbs Finally, be prepared! Always carry a replacement projector lamp.
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