... for bracket and base,Aluminium Sheet Top Cover.*Lens: Impact resistant clear PC, High transmitance. *Reflector: High-purity ... oxidation.*Seal: Rubber. High Temperature Resistant. *Fasteners: Stainless Steel.Rust & Corrosion resistant.*Post: Aluminium/Steel,hot-galvonized ... *Finish: Polyester powder fuse coating is standard & UV Resistant;Option: Polyester powder fuse coating, Black, Bronze, White, ...