Square surface mounted multi-downlight made of aluminium; luminaire housing can be attached to mounting plate without tools by interlock; converter integrated into luminaire housing; surface gold powder coated; equipped with a flood square light element; symmetrical light distribution with precise radiation characteristic, beam angle 56°; high quality reflector with micro-faceted, aluminum-vaporised surface; Reflector chrome; UGR ≤ 19; passive cooling of the LEDs through improved heat sink geometry; light colour 4000 K; binning initial MacAdam ≤ 3 SDCM; CRI ≥ 90; min. 90% of luminous flux after 50000 operating hours; energy-efficient high power LEDs with very good colour rendering; degree of protection IP20; PC1; incl. converter, non dimmable; light source not replaceable; control gear replaceable by an authorized professional; clank-free; General: Ceiling, Surface, gold, Reflector chrome, RAL260-M, IP20, 498 lm LED: 4000 K, CRI ≥ 90, L90 / 50000 h, initial MacAdam ≤ 3 SDCM , Rg: 102, Rf: 93, R{1-15}: 92, MR 0.81, MDER 0.74 Optical: flood square, beam angle 56°, UGR < 19, PstLM ≤ 1.0, SVM ≤ 0.4 Electrical: non DIM, 5.7 W, PC1, 87 lm/W Physical: length 51 mm, width 51 mm, height 90 mm, 0.2 kg 090-1Q161F9001