Modular LED recessed luminaire with lens optic. Total power: 19.5 W, Slave luminaire for DALI control (DALI only) with LED converter; LED service life lasts 50000 h before luminous flux is reduced to 85% of the initial value. Chromaticity tolerance (initial MacAdam): 3. Luminaire luminous flux: 2720 lm, Luminaire efficacy: 139 lm/W. Colour rendering Ra > 80, colour temperature 4000 K. Symmetric wide distribution luminaire . Light control via square lens optic for glare-free light distribution with ; low dirt sensitivity and simple cleaning; Luminaire with external electrical connection; Installation as pure lay-in luminaire for modular ceilings with visible grid system; Luminaire wired with halogen-free leads; Dimensions: 1248 x 310 x 38 mm, weight: 4.46 kg