Installation housing in pressed steel sheet with rectangular cut-out; for trimless installation in plasterboard ceilings; special edge design with perforations for better adhesion of filler; suitable for ceiling thickness of 12.5 mm; 3 non-reversible plug and play connector sockets for power supply to the spotlights; spotlight can be installed and moved without tools by means of magnetic holders; hot plug protection; surface jet black powder coated; degree of protection IP20; PC1 220-240V; incl. DALI-2 converter; all spotlights together DALI dimmable; control gear replaceable by an authorized professional; General: Ceiling, Recessed, jet black, RAL 9005, IP20 Electrical: DALI-2, PC1 220-240V, 1 DALI Addr. Physical: length 308 mm, width 252 mm, height 120 mm Cutout: length 308 mm, width 136 mm, min. ceiling thickness 12.5 mm, max. ceiling thickness 12.5 mm, recessed depth 175 mm 049-8843038