This fitting presented by the team at Robus is complete with ceramic E27 lamp holder and utilises ABS UV-stabilised housing with Polycarbonate diffuser. It comes with stainless steel screws and a wide ambient operating temperature range of -20 degrees to 40 degrees. The fitting can be used with energy saving LED CFL lamps and max 60W incandescents in sheltered outdoor common areas gardens hotels or pub and restaurant walkways. Photocell version Switches light on automatically at dusk and remains on until daybreak. Comes on at 20 lux goes off at 50 lux.