Luminaire housing made of aluminium with rounded edges; extremely flat (only 15mm) and slim (only 180mm) design; modern shape in an elegant design for high demands; for continuous lighting systems; surface black powder coated; with integrated toolless suspension height adjustment on the luminaire; convenient quick mounting system without tools; direct light distribution through LGP body (Light Guiding Prism); side coupled light directed downwards by laser engraving; light control via highly reflective reflector material; indirect light component with special PCBs for increased luminous flux and maximum ceiling illumination; microprismatic PMMA cover; completely homogeneous illumination; same light density for all surface lights with the same components; UGR ≤ 19; light colour 4000 K; binning initial MacAdam ≤ 3 SDCM; CRI ≥ 90; min. 90% of luminous flux after 50000 operating hours; energy efficient LEDs with high CRI; 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; sound absorbing accessories available; accessories are listed separately; light source replaceable by an authorized professional; control gear replaceable by an authorized professional; General: Ceiling, Suspended, black, RAL9005, IP20, indirect 2230 lm, direct 4140 lm, total 6370 lm LED: 4000 K, CRI ≥ 90, L90 / 50000 h, photobio. safety RG 0 - no Risk, initial MacAdam ≤ 3 SDCM , Rg: 96, Rf: 90, R{1-15}: 87, MR 0.75, MDER 0.68 Optical: Microprismatic, microprismatic, UGR < 19, PstLM ≤ 1.0, SVM ≤ 0.4 Electrical: DALI-2, system 53 W, PC1 220-240V, system 120 lm/W, 1 DALI Addr. Physical: length 1457 mm, width 180 mm, height 34 mm, 3.9 kg 059-5765138K