Modern LED ceiling light Stella with Ozonos AC-1 Plus air purifier The Stella ceiling luminaire has a very contemporary design in the shape of three cuboids. the downward facing surfaces are equipped with satin diffusers that evenly diffuse the light of the integrated LED. Depending on the connection, the light output can be controlled externally; this is possible via DALI, DSI, switchDIM, corridorFUNCTION or Casambi (module required). But Stella is not just a ceiling light alone; it is also equipped with an AC-1 Plus air purifier that is invisibly integrated from the outside. This sucks the room air into the interior, generates O3 molecules by means of UVC radiation, which enrich the air and ensure a low ozone concentration in the room. The odourless gas with its strong oxidising effect eliminates odours, aerosols and allergens as well as bacteria, viruses and fungi, thus ensuring pleasant and healthy air quality. It also prevents the accumulation of grease residues on the kitchen equ