Key Information Type: DLP ProjectorIt has a chip which houses millions of mirrors that reflect light thousands of times each second. One-chip DLP projectors can produce more than 16 million colors while three-chip models can produce more than 35 trillion colors. This allows DLP projectors to reproduce more natural and lifelike images Contrast Ratio: 4000:1 Brightness(ANSI): 100 ANSI LumensBrightness of the projector is rated in lumens. The higher the lumen value, the higher the potential brightness of the image Lamp Life: 30000 HoursIndicates number of hours for which the lamp which provides brightness to the image will function Screen Size: 20-100 Inches Weight: 420 g Native Resolution: 854 x 480The total number of pixels on the screen, more pixels results in a sharper image الماركة دايو