Recessed housing made of pressed steel sheet for flush installation in plasterboard ceilings, underside of aluminium-reinforced plaster (paintable); with square cut-out; no break-out of edges; for trimless installation in plasterboard ceilings; suitable for ceiling thickness of 8-25 mm; 3 non-reversible plug and play connector sockets for power supply to the spotlights; spotlight can be installed and moved without tools by means of magnetic holders; hot plug protection; indirect light component in housing; light colour 3000 K; binning initial MacAdam ≤ 3 SDCM; CRI ≥ 90; min. 80% of luminous flux after 50000 operating hours; energy efficient LEDs with high CRI; indirect component in the channel continuously adjustable dimming via DALI; surface traffic white powder coated; degree of protection IP20; PC1 220-240V; incl. DALI-2 converter; all spotlights together DALI dimmable; light source replaceable by an authorized professional; control gear replaceable by an authorized professional; General: Ceiling, Recessed, traffic white, RAL 9016, IP20 LED: 3000 K, CRI ≥ 90, L80 / 50000 h, initial MacAdam ≤ 3 SDCM , Rg: 101, Rf: 91, R{1-15}: 89, MR 0.56, MDER 0.51 Electrical: DALI-2, PC1 220-240V, 1 DALI Addr. Physical: length 260 mm, width 260 mm, height 120 mm, 5 kg Cutout: length 270 mm, width 270 mm, min. ceiling thickness 8 mm, max. ceiling thickness 25 mm, recessed depth 140 mm 049-8833537