Round light fitting in aluminium; consisting of light fitting (SONO) and installation housing; housing with wrap around border suitable for installation in plasterboard ceiling; suitable for ceiling thickness of 10-25 mm; surface white powder coated; luminaire can be set in the housing without tools; either flush with the ceiling or protruding 25mm; LED board highly reflective lacquered for higher efficiency; same luminance for all size versions; 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; completely homogeneously illuminated, satin PMMA cover; luminaire with 2 cable openings and plug-in terminal for through wiring; degree of protection IP50; PC1 220-240V; photobiological safety according to IEC 62471 risk group RG 0 - no Risk; internal wiring in light halogen free; incl. DALI-2 converter; light source not replaceable; control gear replaceable by an authorized professional; General: Ceiling, Recessed, white, RAL9010, IP50, 3010 lm LED: 4000 K, CRI ≥ 80, L90 / 50000 h, photobio. safety RG 0 - no Risk, initial MacAdam ≤ 3 SDCM , MR 0.72, MDER 0.66 Optical: Opal, UGR < 25, PstLM ≤ 1.0, SVM ≤ 0.4 Electrical: DALI-2, no emergency light, 23.2 W, PC1 220-240V, 130 lm/W, 1 DALI Addr. Physical: trim, diameter 478 mm, height 100 mm, 7.6 kg Cutout: diameter 465 mm, min. ceiling thickness 10 mm, max. ceiling thickness 25 mm, recessed depth 150 mm 063-3248637O