Contrast ratio 4,500:1 Brightness adjustment(dimming) 100 grade auto/manual-adjustment View angle(degree)(50% brightness) Horizontal: 120 (60 off center); Vertical: 70 (+25/-45 off center) Readability viewing angle Horizontal: 150 (75 off center); Vertical: 90 (+35/-55 off center) Color capability 4.4 trillion Refresh rate(Hz) >2000 Hz Frame frequency(Hz)>60 Hz Interface port DVI interface(DVI connector) Input signal VGA, Video, AVI, MOV, MPG, DAT, VOB etc. Protection grade IP65 front side/IP54 backside LED Drive Constant-current drive P10