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 white 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; microprismatic PMMA cover; completely homogeneous illumination; same light density for all surface lights with the same components; UGR ≤ 19; VDU compatible workplace luminaire according to DIN EN 12464-1; luminance above 65° ≤ 3000 cd/m²; 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; 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, white, RAL9010, IP20, 1550 lm LED: 4000 K, CRI ≥ 90, L90 / 50000 h, initial MacAdam ≤ 3 SDCM , Rg: 96, Rf: 90, R{1-15}: 87, MR 0.75, MDER 0.68 Optical: Microprismatic, microprismatic, UGR < 19, ≥65° <3000 cd/m², PstLM ≤ 1.0, SVM ≤ 0.4 Electrical: DALI-2, 220-240 V, system 12.9 W, PC1, system 120 lm/W, 1 DALI Addr., without power feeder Physical: length 763 mm, width 180 mm, height 34 mm, centerline radius 675 mm, 3.2 kg 059-5542137K