The LED rainbow tube traits: Long life-time, low energy source consuming, high brightness, long hours lighting, cold light source, easy flection, bearing the high or low temperature, good waterproof. colorful, fadeless and environmental. Whole colourful result products can produce the result that three colors and seven colorses change with each other by the controller. The specification is (big and small) two lines, big three lines, flat three lines, flat four lines, flat five line etc. (The length, the power supply plug and electric voltages can be made according to request of customer's engineering). The color of rainbow tube is gorgeous, the result of decoration is good, and it can be flected easily, So it is extensively used for the cities bright engineering, the building outline of city's delineation, and the night view decoration etc.