Product Type: Business Projector, education, investment and projection technology: 3LCD brightness: 3600 lumens Contrast Ratio: 2500:1 standard resolution: XGA (1024 * 768) Projection size 30-300 inches Lamp Life: normal mode: 4500 hours Total Power : 310W, standby power: 11 Product weight: 3.3kg projection distance :0.762-7 .62 m light source type: the ultra-high pressure mercury lamp display chip: .63 in. the highest Resolution: 1600 × 1200 light bulb power: 210W zoom way: manually zoom keystone correction: Max: ± 30 degrees of computer compatibility: 3.58, PAL, SEC video compatibility: 480 at 60 i, 480 at 60 p-