LED or fluorescent ceiling or suspended luminaire with direct light or direct/indirect light emission. Consisting of a trapezoidal-shaped extruded aluminium body with rounded corners. The luminaire is to be completed with accessories such as diffuser or optics to achieve UGR<19 or UGR<22. PAR version with aluminium antireflection optic included (UGR<22). On board driver. In-line configuration possible.