Impact-resistant surface-mounted luminaire in a simple design for IP55 outdoor applications, easy to maintain, no UV and heat radiation, tool-free removable diffuser via bayonet lock, housing for operating device made of polycarbonate, housing ring made of aluminum, mounting via metal screw plate, opal acrylic glass diffuser, 5-pin connection terminal, suitable for through-wiring, operating device (LED converter) integrated (with DALI dimming)