3 pcs. ring-shaped light fittings in rolled and seamlessly welded extruded aluminium profile; surface white powder coated; suspended luminaire with 5000mm cable suspension (canopy central); height adjustment without tools; light fitting individually height adjustable; incl. transparent feed; 3 pcs. electronic operating units installed in the canopy; light colour 2700 K; binning initial MacAdam ≤ 3 SDCM; CRI ≥ 90; min. 90% of luminous flux after 50000 operating hours; energy efficient LEDs with high CRI; HPO (High Performance Opal) cover for uniform illumination; inwards facing emission characteristics; direct/indirect light emission for additional accentuation of the ceiling; canopy with 2 cable openings and plug-in terminal for through wiring; degree of protection IP20; PC1; internal wiring in light halogen free; incl. 3 pcs. DALI-2 converters; light fitting separately controllable; light source replaceable by an authorized professional; control gear replaceable by an authorized professional; General: Ceiling, Suspended, white, RAL9010, IP20, direct 16500 lm, total 19500 lm LED: 2700 K, CRI ≥ 90, L90 / 50000 h, initial MacAdam ≤ 3 SDCM , Rg: 101, Rf: 90, R{1-15}: 88, MR 0.51, MDER 0.46 Optical: High Performance Opal, opal (lambertsch), PstLM ≤ 1.0, SVM ≤ 0.4 Electrical: DALI-2, 220-240 V, system 150 W, PC1, 3 DALI Addr. Physical: cable 5000 mm, diameter 1455 mm, height 60 mm, 5.4 kg 034-3845437H