Panel luminaire type M2-R for Ceiling recessed mounting, Length 597mm and width 597mm, colour WH - White, LED light source, lumen out 5326lm, LED driver type DALI DT8: Dimming (CCT/Tuneable white), colour temperature 2700 Kelvin, to 6500 Kelvin, and CRI >80, Optic type OP - Opal diffuser,