Intended for the use in rooms with high humidity levels or dust concentrations, the energy efficient Smart [3] luminaire is suitable for installation particularly in warehouses, production facilities, multistorey car parks, garages, roofed outdoor areas or schools. The materials used, such as the polycarbonate in the body, securely protect the LED light source from impact, steam, humidity, foreign matter and dust. With a thickness of only 76 mm, the compact light is available in three different lengths or for continuous row arrangements.