LED tube light adopts LED and PC tube in high quality, it is characterized as anti-shocking.anti-aging,anti-Violet ray, long life , energy saving and rich colors, it has single color ,tri-color, and multi-color .For different sections of a tube , color-changing can be different changes such as chasing,gradual changing , jumping , and flowing are available .It is good to use in places as bridges buildings, outline of tall building and advertising board etc.