Square ceiling mounted spotlight made of aluminium; surface white (housing/light inset); luminaire housing can be attached to mounting plate without tools by interlock; passive cooling of the LEDs through improved heat sink geometry; with COB (Chip on Board) technology for maximum efficiency; no appearance of multiple shadows; light colour 2700 K; binning initial MacAdam ≤ 2 SDCM; CRI ≥ 90; min. 80% of luminous flux after 50000 operating hours; energy efficient LEDs with high CRI; incl. high quality lens system; precise radiation characteristic with 22° beam; UGR ≤ 19; degree of protection IP20; PC1 220-240V; incl. converter, non dimmable; converter integrated into spotlight head; luminaire for through wiring; light source replaceable by an authorized professional; control gear replaceable by an authorized professional; General: Ceiling, Surface, white, Inner colour white, RAL9016/white, IP20, 815 lm LED: 2700 K, CRI ≥ 90, L80 / 50000 h, initial MacAdam ≤ 2 SDCM , Rg: 99, Rf: 91, R{1-15}: 89, MR 0.53, MDER 0.48 Optical: medium, beam angle 22°, UGR < 19, PstLM ≤ 1.0, SVM ≤ 0.4 Electrical: non DIM, 10.4 W, PC1 220-240V, 78 lm/W Physical: length 72 mm, width 72 mm, height 108 mm, 0.5 kg 048-30104177M