A, Ceiling surface mounted, panel luminaire with our efficient OP - Opal diffuser in acrylic optics. The luminaire, gives 2674 lumens and, 122 lm / Watt. The light source has, colour temperature 3000, Kelvin with, a CRI> >80. This version has DALI: Dimming LED driver, integrated, integrated emergency light type ST = Self test with 1 hour light time in battery operation.