1) Application: display of gas prices at petrol stations 2) Numeric display: display of up to 3 digits 0 - 9 3) Display brightness: designed for control of display of any layer at luminance ranging 20% to 100% 4) Flashing display: designed for control of stable or flashing display of any layer 5) Energy-saving 6) According to change of ambient light, at daytime or night, the light sensitive probe will automatically control lighting of the LED display at 100% or X% (set value) luminance 7) controller and the display can via cable connect, the distance is more 1000m. 8) infrared remote controll and wireless remote controll, two ions