Powder-coated sheet steel housing, rectangular cross-section, with sturdy steel front sides, rear of the housing with integrated pull-in nuts for attaching the accessories for ceiling mounting and chain suspension from the outside and additional fastening holes for quick ceiling mounting. Direct, deep-wide beam light distribution, optimized glare control thanks to innovative, nano-prismatic light-directing film in multilayer technology, luminaire cover using PC pane, clear, 2mm, electrical connection and connection of the control cable via 5-pin connection terminal with plug-in contact technology.