Detailed Product Description DC 5 V Speed Limit GPRS or 3G Led Traffic Outdoor Signs with Brightness 10000 10% Nit ITEM DESCRIPTION Pixel configuration 1R1W Control Mode Single chip Panel size 900.5*600.5*69mm Brightness 10000 10% Nit Display angle H : 1 / V : 1 Visible distance Direct sun to the panel, beyond 100M LED Encapsulation Nichia DIP510 Working Voltage DC 5 V Waterproof level IP65 Working Consumption 30W Life Time 10years Environment Temperature -20ãC~ 60ãC Shell material aluminum LED Traffic Speed Limit Screen Function: 1. 30km/h, 50km/h, 70km/h can be showed. 2. Can show temperature/humidity and single LED dot check function. 3. Automatically adjust led display brightness: Night at 20, dark day at 180 and daylight at 250. 4. PC can communicate with LED display through serial port, if remote controller, need to connect RS232 port with wireless modern, and PC can communicate with LED display through 3G or GPRS. 5. White color frame and red color fame can show very simple change. DC 5 V Speed Limit GPRS or 3G Led Traffic Outdoor Signs with Brightness 10000 10% Nit LED Traffic Speed Limit Screen Communication Process: 1.PC send a command to LED display Through GPRS or 3G. 2.LED display execute this command. 3.LED display make a successful feedback(if no feedback within 10 minutes, then fail, please check internet) wooding or flighting cases