Recessed mounted LED luminaire for frameless installation in plasterboard ceilings. Direct only light distribution. Light channel made of 81mm wide aluminium profile. Bespoke lengths possible. Microprismatic screen made of special acrylic glass and satin Louvre made of aluminum with optimized glare reduction especially for workplaces Satin opal diffuser for general lighting with maximum transmittance and homogeneous lighting. Wallwasher for homogeneous illumination of vertical surfaces. Driver integrated into luminaire housing, optionally switchable or dimmable (DALI, Touch-Dim, Casambi). Colour temperature 2200K, 2700K, 3000K, 3500K, 4000K, 6500K or Tunable White (2700-6500K). Binning≤ MacAdam 3. Colour rendering CRI>80, CRI>90 or Full Spectrum. Optional mounting frame for installation with shadow gap, alternative mounting brackets for installation without shadow gap. Mounting frame or luminaire profile available in advance for mounting; other luminaire components can be mounted at different times. On request: Integration of spotlights, emergency lighting components, sensor technology.