K147 Wide Recessed LED Plasterboard Profile — Multi-Optics Linear Channel for Architectural LED Systems The K147 is a wide-body recessed LED plasterboard profile built for projects where a thin decorative line isn't enough — the LED itself has to carry real lighting load. It accepts LED strips up to 10.5 mm wide and pairs a substantial aluminum housing with a full range of optical covers, giving specifiers one platform for both ambient and task-level linear lighting. The