Acer Value P1173, 3000 ANSI lumens, DLP, SVGA (800x600), 17000:1, 4:3, 24 - 300" Acer Value P1173. Projector brightness: 3000 ANSI lumens, Projection technology: DLP, Projector native resolution: SVGA (800x600). Light source type: Lamp, Service life of light source: 5000 h, Service life of light source (economic mode): 6000 h. Focal length range: 21 - 23 mm, Aperture range (F-F): 2.57 - 2.65, Zoom ratio: 1.1:1. Analog signal format system: NTSC, PAL, SECAM. Serial interface type: RS-232, USB connector type: Mini-USB B Everyone loves big screen TVs, right? But what if you're not willing to drop a couple grand on the latest flat screen TV? What if you're feeling a little dubious about taking the time to mount such a monstrosity on your pristine, unmarred walls? We don't... Inexpensive compared to flat screen TVs and smart projectors, Doesn't damage walls, inexpensive and easy to mount, Bright light can even be used in welllit rooms Poor speaker quality, Expensive lamp bulb replacement, Runs at high temperature