material quality 1. high-intensity rust-resisting outer casing of aluminum alloy, high-pressure casting lamp connecting handle. 2. pmma transparent cover. 3. import highly pure aluminum-surface reflector. 4. temperature-resisting silica gel sealing tape. 5. stainless steel safety hasp. 6. e40 porcelain lamp base. distinctive feature 1. fit for different kinds of luminous sources. 2. transferable active carbon breathing device set inside. 3. integrated electrical installation plate with anti –drop hanging chain that is easy to disassemble and convenient for maintenance. 4. transparent cover with anti-static treatment in surface and anti-drop hanging wire. 5. light-weighted, quake-resistant, windproof and having a high intensity. 6. reflector computer design, soft-pressure shaping, gentle and forgoing reflecting light beam, anti-glare. 7. fit for standard arm rod with an outer diameter of 50-60mm. 8. ip65 protection grade. 9. safety certification of ec (european community) applicable spots high-grade roads, urban streets, public places