With fashionable appearance design,The main parts are made by high-pressure die casting aluminum, resistible to wallop and corrosion. The radiating parts are made from supermumetal heat aluminum by special process. High-strength tempered glass is of high light transmission and well ultraviolet resistance by special process. Scientific and reasonable design of light distribution can meet the demand of light distribution in tunnel lighting portrait symmetry. Efficient driving power supply: power efficiency can be over 90%.Power factor=0.98. High quality LIGHTINH components are used, which makes lighting more stable and the life longer. The life can be 50000 hours. The lamp is equipped with device of waterproof power supply. Humanized design of structure, with easy installation and maintenance.The installation angle can be adjusted between-55 and +55,suitable for various ways of installation.