Ring-shaped light fitting in die-cast aluminium; extremely slim design; for trimless installation in plasterboard ceilings; suitable for ceiling thickness of 12.5/15/20/25 mm; surface black powder coated; incl. blind cover made of plastic in the cut-out; SASSO 60 round or SPIO 60 for installation in the cut-out available as an accessory; light colour 4000 K; binning initial MacAdam ≤ 3 SDCM; CRI ≥ 80; min. 90% of luminous flux after 50000 operating hours; energy efficient LEDs with high CRI; high gloss reflector with faceted design; Reflector chrome; UGR ≤ 19; VDU compatible workplace luminaire according to DIN EN 12464-1; luminance above 65° ≤ 1500 cd/m²; degree of protection IP20; PC2 220-240V; internal wiring in light halogen free; incl. DALI-2 converter; converter wired secondary side; through wiring connection box, 3-pole or 5-pole, available as an accessory; accessories are listed separately; light source replaceable by an authorized professional; control gear replaceable by an authorized professional; General: Ceiling, Recessed, black, Reflector chrome, RAL9005, IP20, 1190 lm LED: 4000 K, CRI ≥ 80, L90 / 50000 h, initial MacAdam ≤ 3 SDCM , MR 0.72, MDER 0.65 Optical: Reflector, Symmetric, UGR < 19, ≥65° <1500 cd/m², PstLM ≤ 1.0, SVM ≤ 0.4 Electrical: DALI-2, 8.5 W, PC2 220-240V, 140 lm/W, 1 DALI Addr. Physical: trimless, diameter 160 mm, height 47 mm Cutout: min. ceiling thickness 12.5 mm, max. ceiling thickness 25 mm, recessed depth 60 mm 074-8222618R 002-91120