Luminaire housing made of extruded aluminium profile; light tight final end caps made of aluminium; no visible screws; angular design; surface grey powder coated; suspended luminaire with 1500mm cable suspension; with integrated tool-less suspension height adjustment; spring clip attachment to the luminaire; freely positionable; incl. transparent feed; LED light inset consisting of highly reflective lacquered aluminium for improved thermal management; light colour 3000 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; UGR ≤ 19; direct/indirect illumination characteristic; indirect light component with integrated PC boards for maximum, homogeneous ceiling illumination; 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; luminaire with integrated infrared presence and brightness sensor (ESSENTIAL sensor); automatic light control of luminaire to individually adjustable brightness; variable automatic shutdown; light source replaceable by an authorized professional; control gear replaceable by an authorized professional; General: Ceiling, Suspended, grey, RAL9006, 3810 lm/m, IP20, indirect 2350 lm, direct 3260 lm, total 5610 lm LED: 3000 K, CRI ≥ 80, L90 / 50000 h, photobio. safety RG 0 - no Risk, initial MacAdam ≤ 3 SDCM , MR 0.54, MDER 0.49 Optical: Microprismatic, UGR < 19, PstLM ≤ 1.0, SVM ≤ 0.4 Electrical: ESSENTIAL sensor (brightness & presence), 51 W, PC1 220-240V, 110 lm/W, 35 W/m Physical: cable 1500 mm, length 1480 mm, width 60 mm, height 80 mm, 4.2 kg 046-522557GZ