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Don´t move your projectorWhile the projector lamp is still on (even while it is powering down), the lamp is very sensitive to movement. Moving the projector while the projector lamp is still on could shorten the lamp life, or worse, it could cause the projector lamp to burst. Give your projector "breathing room"Pay attention to where the fan exhaust is on your DLP or LCD projector. All of the heat from the projector lamp must be dispersed away from the projector and exits at the fan exhaust. Make sure that this projector fan exhaust is two to three feet away from a wall or any solid object that could block it. Without “breathing” properly, the projector lamp will be too hot and could burn out much sooner. Don´t shake your projector Be careful not to shake, jostle, bump or move your multimedia projector quickly, especially when the projector is on. A multimedia projector’s electronics are sensitive to these types of movements. Why are projector lamps so expensive?If you think the cost of a projector lamp is comparable to a standard 60-watt lightbulb, think again. Projector lamps are relatively expensive, ranging from £120 for low lumen projectors, to over £350 for high lumen projectors. The average projector lamp cost is £250. There are good reasons that the price is what it is. Projector lamps are highly sophisticated instruments that produce amazing brightness. In addition, the assembly process is complicated and supply is somewhat limited - with a few models being on backorder for several months. Consider purchasing a spare projector bulb when you buy a projector. That way, you will have a spare in case of emergencies, and you can get a good discount on the lamp by purchasing at the same time as the projector.