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High-definition data projection units produce a considerably better image than standard projectors. David Freund/Photodisc/Getty Images
A data projector is an electronic piece of equipment that receives a signal from an outside source and projects it onto a screen while creating a larger image. Data projectors typically receive their outside signal from computers, televisions, DVD players, video gaming systems or camcorders. They can be used to spruce up your home entertainment system or in an office environment, typically in a conference or meeting setting.
Resolution
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A quality resolution for a standard projector is 800 x 600 SVGA, though sizes and picture quality vary depending on the video source that is transmitting the signal to the projection unit. The projector will sometimes crop high-resolution videos, which can cause poor picture quality. High-definition, or HD, projectors offer the highest quality resolution and work best when the electronic video unit sending the signal to the projector is also high definition. A 3x-speed engine color wheel creates the 4:3 and 16:9 aspect ratios and HDTV/DTV resolutions1080i, 1035i, 720p, 576P, 576i, 540p, 480i and 480i.
Color Contrast
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The color contrast is the term used to describe the aberration between colors. The best contrast in the latest data projection technology is 2000:1 high-contrast, which produces an extremely high-quality image.
Lamp Life
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How many hours the projection bulb will last, or lamp life, depends directly on the brightness settings of the projection unit. Generally, standard lamps last around 2,000 hours, but there are longer-lasting, higher-brightness bulbs that can last around 5,000 hours in ECO mode.
Audio
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You're going to want to use external speakers because the sound quality of almost all data projectors is poor because of extremely low-quality internal speakers.
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