The cover frame and the lamp body are made of aluminium alloy and are molded through die-casting; the surface is treated by two processes of electrostatic dusting. The step cover is equipped with sand blasted fully toughned glass with woven design and the four sides are sealed with glass glue. Silica gel water proof gaskets which are resistant to high temperature are installed around the glass and under the cover; protection class is IP55. Two kinds of light sources, LED & QT9 are optional for this product. Electric appliances are installed internally. It is suitable for exterior corridor, passageway, wall footing, park and so on.This product is CE cerified and all materials are in conformity with RoHS standard.