Diagonal size: 15"17" 19"20" Aspect ratio: 4: 3 Display colors: 26.5M Resolution: 1024X768 Pixel pitch: 0.279X0.279mm Brightness: 350cd/m2 Contrast ratio: 400: 1 Response time: <16ms Horizontally scan frequency: 35-81KHz Vertically scan frequency: 50-75Hz Speaker: 10WX2 Viewing angle: 85 /85/85/85 TV Incept mode: NTSC/PAL/SECAM Input terminal: TV, PC, AV1, AV2, S-Video, Ycbcr Lamp life time: 50, 000Hours Power Input: AC 100-220V 50-60Hz