Air supply and exhaust recessed luminaire with adjustable height and low noise for under- and over-pressure ceilings

摘要

A reflector has two parts (5,6), between which there is a ventilation duct (7) and a bent edge on a reflector part (6) next to a suspended/drop ceiling (2). A lighting unit (1) includes a flush mount for holding the two reflector parts and an acoustic stopper. An independent claim is also included in a modified claims list for a flush mount for a flush ceiling lighting unit with a fastening element.