Extruded aluminium alloy body. Die-cast head and flange manufactured in aluminium alloy EN 44300 with very low copper content. As an alternative to the traditional polycarbonate (PC),used with diffusers to seal the lamp polymethylmethacrylate (PMMA) is used , so we obtain characteristics of high transparency, UV resistance and scratch resistance. A4 Stainless steel screws. Subjected to galvanic anodizing treatment divided into distinct phases: mechanical satin finishing, surface degreasing, anodic oxidation and final sealing. The product is painted following a continuous two step paint process (epoxy-based primer + polyester-based colour finish), which allows to generate a single thick protective coating which then generates aprotective barrier against atmospheric agents and UV rays.