Tubular ceiling suspended luminaire made from aluminium and ribbed glass; surface Champagne; powder coated; matt texture; inclusive adjustable cable suspension max. 2500mm in Signal Black; PCB 3-step binning; phase-cut dim; light colour 2700 K; binning initial MacAdam ≤ 3 SDCM; CRI ≥ 90; 220 - 240 V; degree of protection IP20; Class 2; driver included; light source replaceable by Wever & Ducré or by a professional with explicit authorization; control gear replaceable by end-user;