Luminaire housing made of extruded aluminium profile; recessed light with wrap around edge; suitable for ceiling thickness of 8-25 mm; surface grey powder coated; lighting profile (end cover and mounting bracket pre-assembled) available in advance for installation; remaining lamp components mounted without tools; LED light inset consisting of highly reflective lacquered aluminium for improved thermal management; 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; micro prismatic PMMA diffuser incl. diffuser film for homogeneous illumination and reduced luminance; degree of protection IP20; 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 replaceable by an authorized professional; control gear replaceable by an authorized professional; General: Ceiling, Recessed, grey, RAL9006, 2790 lm/m, IP20, 6520 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: Microprismatic, UGR < 22, PstLM ≤ 1.0, SVM ≤ 0.4 Electrical: DALI-2, 55 W, PC1 220-240V, 119 lm/W, 1 DALI Addr., 24 W/m Physical: trim, length 2368 mm, width 120 mm, height 82 mm, 8.1 kg Cutout: length 2356 mm, width 108 mm, min. ceiling thickness 8 mm, max. ceiling thickness 25 mm, recessed depth 108 mm 052-43M863GZ