Round shape ceiling surface luminaire made from die-cast aluminium; opal PMMA cover; surface Black Matt wet painted; matt texture; RAL 9005; with COB (Chip on Board) technology for maximum efficiency; light colour 4000 K; binning initial MacAdam ≤ 3 SDCM; CRI ≥ 90; degree of protection IP20; Class 1; driver included; light source replaceable by Wever & Ducré or by a professional with explicit authorization; control gear replaceable by end-user;