1.each pixel contains two red, one pure green, one pure blue and total four leds 2.pixel pitch: 6mm,7.62mm,10mm for option. 3.brightness adjustment: 256 manual and eight automatic grades 4.drive mode: constant current driving and static latching 5.viewing angle: > 160 degrees (left and right viewing angle) 6.viewing distance: 3 to 100m 7.gray scale: red green blue color 16384 grade coding 256 grade output 8.display color: 36-bit color 9.exchange frame speed: > 60 frames/second 10.refresh frame frequency: ≥400hz 11.screen body weight: less than 40kg/m2 12.control distance: 120m (without relay) 13.screen life:100,000hours 14.mtbf: > 10,000 hours 15.working temperature: -20 to +60 degrees celsius 16.working humidity: 10 to 95% rh 17.working system: windows 95, 98 and 2000 18.connector: america amp