Particularly flat design luminaire housing, extruded aluminum profile, naturally anodized, visible height 30mm, front sides and side parts made of naturally anodized aluminum with continuous longitudinal groove, rounded towards the underside of the luminaire. Direct/indirect light distribution, direct component via frosted PMMA panel, homogeneous light emission through lateral LED light coupling and superimposed aluminum reflector with highly reflective white coating, with micro-perforations for slight ceiling illumination. Two DALI LED drivers Device Type 8 (DT8) integrated. Electrical connection and connection of the control line via 5-pin connection terminal with plug contact technology.