material quality 1. high-intensity rust-resisting outer casing of aluminum alloy, high-pressure. 2. casting lamp connecting handle. 3. pmma transparent cover. 4. import highly pure aluminum-surface reflector. 5. pa temperature-resisting felt sealing tape. 6. stainless steel safety hasp 7. e27 or e40 porcelain lamp base. distinctive feature 1. apply to fit for different kinds of luminous sources 2. electrical bottom plate that is easy to disassemble and convenient for maintenance. 3. transparent cover with anti-static treatment in surface and anti-drop hanging wire. 4. light-weighted, quake-resisting, windproof and having a high intensity. 5. reflector computer design, soft-pressure shaping, gentle and forgoing reflecting. 6. light beam. 7. fit for standard arm rod with an outer diameter of 50mm. 8. ip54 protection grade. 9. safety certification of ce(european community). applicable spots ii-grade road ,urban streets, public places.