courtyard lamp (Au5721) technical specifications courtyard lamp (Au5721) is made of 3 parts. THE DOME in cast aluminum fixed on the cap. THE CAP is made of embossed aluminum sheet, assembly is held to the base flange by means of 3 aluminum piping. THE DIFFUSER is made of clear or opal methacrylate tube. THE BASE FLANGE in cast aluminum. Top mounting for Φ76mm. Painted by polyester powder, color on request. Protection degree: optical block IP54. Shock energy: 2 joules(methacrylate tube) CLASS I CLASS II on request Socket: E27 Lamps: H.P.S. 70W MAXI Packing size(cm): 77*77*54 Mounting height(m): 3~6