MATERIAL AND CHARACTERISTICS: 1.Strengthen PC tube shell,heat-resistant,anti UV-ray. 2.Low power consumption,long life,waterproof,dustproof. 3.Various colors compounding-form as single color,doule color,seven colors gradual changing and seven colors jumpy changing. APPLICATIONs: extensively applied in lighting of cloverleaf junction,river-way,building outline,garden,light column ect.