Lamp body and surface frame and tailstock are made of aluminum alloy through die-casting :lampshade is made of toughened glass: Reflector and lampshade and lamp holder are adhered with sealing glue to form an integrated body and consist of the structure of inside exchanging bulb . There is air purifier in the reflector in order to guarantee the output of luminous flux is high the attenuation of reflective coefficient can be decreased,. Light fixture can be installed vertically or horixontally,. The design of light fixture and electric equipment is integration.