Cylindrical wall surface mounted luminaire made of aluminium; surface jet black powder coated; Inner colour lacquered in jet black; 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 3000 K; ≤ 2 SDCM (initial MacAdam); CRI ≥ 90; min. 80% of luminous flux after 50000 operating hours; energy efficient LEDs with high CRI; incl. high quality lens system.