Luminaire housing made of extruded aluminium profile; suitable for rimless installation in plasterboard ceilings; specially designed trim with grooves for better adhesion of smoothing compound; suitable for ceiling thickness of 8-20 mm; surface aluminium raw; luminaire profile with pre-assembled converter unit can be pre-mounted on site; remaining lamp components mounted without tools; 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; with specially computed, asymmetric lens for homogeneous vertical lighting intensity; 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, aluminium raw, IP20, 5450 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: Asymmetric Wallwasher, PstLM ≤ 1.0, SVM ≤ 0.4 Electrical: DALI-2, 41 W, PC1 220-240V, 133 lm/W, 1 DALI Addr., 23 W/m Physical: trimless, length 1820 mm, width 40 mm, height 75 mm, 3.3 kg Cutout: length 1808 mm, width 48 mm, min. ceiling thickness 8 mm, max. ceiling thickness 20 mm, recessed depth 76 mm 045-0726630A