BSF4.8A Module ParameterPixel Pitch 4.81mm Module size  250X250mm Cabinet size  1280×640mmPixel Density 43264dots/sqmLed Color  1R1G1B Module Resolution (W*H) 52*52=2704 DOTSModule weight  0.31kgBest view distance  4.8m~50mHorizontal Viewing Angle>=160°Vertical Viewing Angle≥160° Avg. Power Consumption<350W/sqmMax. Power Consumption<900w/sqmcontrol mode:synchronizationDisplay card DVI cardDriving Method 1/9 scanFrame Rate >=60HzRefresh Rate>=1500HzBrightness >=6300cd/sqmVotage: 110-220VColor temp.  6500K(adjustable)Lifespan: 10000hours Contrast RatioOperating Temp. -20~45computer system WIN98,WINXP,WIN2000,etcOperating Humidity  10%Signal: RF,S-Video,RGB,RGBHV,YUV,YC,COMPOSITION etc.Control system: PCTV(optional)+DVI +control card+fiber system(optional)Item BSF4.8ASMD 3in1Lamp :SMD1921