Kedas Posted November 19, 2005 Share Posted November 19, 2005 Hi, Does someone know why they don't start using white leds in those projectors? You need only about half the energy and what is much more important the lifespan is about 50000 hours. For most projector lamps that is more than a factor 10 longer. So what is stopping them to use LEDs? some info Lamps: Current home theater projectors are all working with a lamp example of a projector: http://www.projectorcentral.com/projectiondesign-F3_SXGA+.htm Here you get 4000Lumen for an 250W lamp (16 lm/watt), lifespan 8000hours LEDs: White LEDs have in best case 80lm/watt http://www.lrc.rpi.edu/resources/news/enews/Apr05/general251.html (available now between 25 and 35lm/watt) Link to comment Share on other sites More sharing options...
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