Environment temperature: Working :-20 +50 Storage:-40 +85 Relative humidity:¡Ü95% Thickness of display:¡Ü150mm+maintaining thickness(800mm) Cabinet weight 50kg/unit. Power: Working voltage: AC 220/110V¡À10% Average consumption: 600W/Sq.M Max consumption: 1000 W/sq.m. Control system: Mainframe: Pentium Memory: ¡Ý256M OS: WIN 98/WIN 2000/WIN XP/ECT Control way: synchronism VGA device: DVI Driving Equipment: consant driving equpment only for LED products. Driving way: Constant driving 1/4 scan Refresh frequency: ¡Ý180Hz Frames change frequency: greater than 60Hz Brightness: ¡Ý6500 cd/m2 Mode of Brightness adjustment: through sorftware. in a range of 0-100 degree Signal of Video: PAL/NTSC Video Mode of output: DVIVGA Hardware for control systemDVI card/ Video processing unit+full color control card Cat.5 communication cable(without relay) not over 130m; Multi-mode optical fiber: 500m; Single-mode optical fiber: 10km-20km MTBF: ¡Ý5000hours Lifespan: greater than 100,000 hs Neat degree: Each pixel to the next one. LENGTH:960mm WIDETH:960MM HIGHTH:125MM WEIGHT:50KG.