Product Name: D4 indoor Full LED Display Screen Visual Advertising LED Billboard Screen Model NO.: D4 indoor 320*160 Certification: CE, ISO 14001 ISO 9001 Application: Stage Performance, Advertising, Shopping Guide Display Type: LED Video Display System Operating Platform: WIN 7 WIN XP WIN 2000 Scanning Mode: 1/20Scan Pixel Density: 62500Dots/m2 Pixel Configuration: 1R,1G,1B Pixel Pitch: 4mm Display Function: Video Display, Image & Text Display, Text Display, Market Display Tube Chip Color: Full Color color: full color size: 320*160*14.7mm packing: 32 pieces one box Pixels: 4096/PIECE Trademark: cailiang Transport Package: Stansard Packing Specification: 640mm*640mm*63mm Origin: Jiangsu, China HS Code: 8531200000 Product Description (PixelsPitch)4mm(ControlMode)Synchronous control (or asynchronous control)(CabinetSize)640mm×640mm(DriveMode)1/20Scan(PixelDensity)62500Dots/M2(RefreshRate)≥1920Hz(Color)1R1G1B(SystemOperatingPlatforms)WIN7,WINXP,WIN2000(Resolution)80x40Dots(DataCommunication)RF,S-Video.RGB,RGBHV,YUV,YC,COMPOSTION(TheBestViewDistance)3m(ControlSystem)PCTV card + DV graphics card + main control card + optical fiber transmission (optional)(brightness)≥850cd/m2(MTBF)≥10000hours(TheBestViewAngle)level140°/plumb130°(WorkLife)100000hours(MaxPowerConsumption)≤750W/M2(FailedRate)<0.0001