Particularly flat luminaire housing, extruded aluminum profile, naturally anodized, visible height 30mm, front sides and side parts made of naturally anodized aluminum with a continuous longitudinal groove, rounded towards the underside of the luminaire. Direct/indirect light distribution, direct component via frosted PMMA pane, homogeneous light emission through lateral LED light coupling and superimposed aluminum reflector in highly reflective white coating, with micro-perforation for the indirect light component. LED driver design integrated. Electrical connection via integrated transparent connection cable 5x0.75mm², length 1900mm, cable ends stripped.