nbspWhat different types of lamps are there?
Most LCD projectors use a metal halide source, which offers a very white light. Older models tended to use halogen lamps – this type of light source has a yellower light. Although halogen lamps are less expensive, they have a much shorter life expectation. Philips manufactures a special type of metal halide lamp, known as UHP (Ultra High Performance). UHP lamps require lower wattage for equivalent brightness, which results in a longer lamp life. The lower wattage required by UHP lamps has other benefits. They allow for smaller and lighter projectors, because the power supply is smaller and lighter. They are also cooler running, quieter, and less expensive-to-operate, because of the lower wattage.
