March 3, 2009 Acer today showed its new K10 pico-projector, the first Acer projector to use LED lamp technology. Weighing a fraction over half a kilogram (0.55 kg / 1.21 lbs.) and measuring just ...

Overhead projectors use incandescent, halogen or fluorescent lamps that put out between 2,000 and 6,000 lumens for approximately 75 hours of use, up to three times the brightness and 10 percent of ...