Recessed mounted LED luminaire for frameless installation in plasterboard ceilings. Direct only light distribution. Light channel made of aluminium profile with 38mm profile width. Precise length production according to specifications possible. Surface natural anodised. Microprismatic screen with optimized glare reduction especially for workplaces. Satin opal diffuser for general lighting. Wallwasher for homogeneous vertical illuminance. Driver integrated into luminaire housing, optionally switchable or dimmable (1-10V, DALI, Touch-Dim, Casambi). Colour temperatures 2200K, 2700K, 3000K, 3500K, 4000K or 6500K. Binning initial ≤ MacAdam 3. Colour rendering CRI>80 or CRI>90. Mounting frame for installation with shadow gap available in advance; other luminaire components can be mounted later. Mounting frame and mounting brackets included. On request: Integration of emergency lighting components, sensor technology as well as many other options.