... , S-Video, VGA, DVI, YPbPr, HDMI, SDI, RF, etc.— Operating system Windows (2000/XP/Vista/7)— Control distance CAT5 cable:<100 ... 1.Best viewing distance. 2. Each pixel contains one red, one green and one blue led. And the brightness can be adjusted accordingly ... difference brightness less than 5 % ,looks like a new one.Factory PhotoPackage We are one of the largest manufactures of LED display in ...