Ring-shaped light fitting in die-cast aluminium; extremely slim design; recessed light with wrap around edge; suitable for ceiling thickness of 2-25 mm; surface white powder coated; blind cover to cover the cut-out available as an accessory; accessories are listed separately; light colour: tunable white diodes (2700-6500 K); binning initial MacAdam ≤ 3 SDCM; CRI ≥ 80; min. 80% 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; light source replaceable by an authorized professional; control gear replaceable by an authorized professional; General: Ceiling, Recessed, white, Reflector chrome, RAL9016, IP20, 3560 lm LED: tunable white, 2700 K - 6500 K, CRI ≥ 80, L80 / 50000 h, initial MacAdam ≤ 3 SDCM , MR 0.47, MDER 0.42 Optical: Reflector, Symmetric, UGR < 19, ≥65° <1500 cd/m², PstLM ≤ 1.0, SVM ≤ 0.4 Electrical: DALI-2, 31 W, PC2 220-240V, 115 lm/W, 1 DALI Addr. Physical: trim, diameter 444 mm, height 47 mm Cutout: diameter 432 mm, min. ceiling thickness 2 mm, max. ceiling thickness 25 mm, recessed depth 60 mm 074-8116D37R