Recessed mounted LED luminaire for frameless installation in plasterboard ceilings. Direct only light distribution. Light channel made of 55mm wide aluminium profile. Bespoke lengths possible. Direct light using precision lenses with louvre for wide uniform symmetrical light distribution with high glare limitation (UGR80, 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 tracks and spotlights, emergency lighting components, sensor technology.