Single luminaire with fixed length for the realization of LED light cove strips, indirect lighting with asymmetrical light distribution, high ease of maintenance, light insert with diffuser for homogeneous light, housing made of aluminum, end cover made of die-cast zinc (40 mm extendable for flush fitting to the wall), compression band for light-tight fitting, removable shielding plate with white reflective foil, other lengths on request, simple screw mounting, 2 x 5-pin connection terminal (prepared for through-wiring), control gear (LED converter) integrated