Recessed mounted LED luminaire for frameless installation in plasterboard ceilings. Direct only light distribution. Luminaire body made of aluminium. Surface white powder-coated. Microprismatic screen with optimized glare reduction especially for workplaces. Satin opal diffuser for general lighting with maximum transmittance and homogeneous lighting. Converter integrated into luminaire housing, optionally switchable or dimmable (1-10V, DALI, Touch-Dim, Casambi). Colour temperature 2700K, 3000K, 3500K or 4000K. Binning initial ≤ MacAdam 3. Colour rendering CRI>80 or CRI>90. Mounting brackets included. On request: Integration of emergency lighting components.