LED tube light commonly known as straight tube lamp, is a traditional fluorescent lamp replacement, embodied in energy saving and environmental protection in two areas. Size installation and traditional fluorescent lamps the same, but the principle of light is the use of LED semiconductor chip for light. According to the shell material is divided into two categories, one is glass, one is aluminum and PC.The luminous efficiency around 90lm / W ~ 200lm / W. Applications in  large factories, production workshops, workstations, office,  shopping malls, underground parking, hospital , school , family.