Using super bright LED, which has long lifespan, it is low power consumption and well to the environment. With the flash control system, it can be used together with the computer to show out all the effects that can show by the computer, and also the video. It is suitable for the decoration of the outline of the building, bridge, river bank etc. Housing Material: Aluminum alloy base, PC cover, oxyenated surface Color: RGB IP Grade: IP65 Controlling Method: with computer or CF card Changing Effects: chasing, flowing, full color, flash