60817919 P-INF Q100L 500-940 LDO BK TL LED ceiling-recessed luminaire without trim, "Stable White"; shielding angle 60°; lamp(s): LED500-940; Colour rendering Ra > 90 (R9> 50), colour temperature 4000 K (neutral white); Chromaticity tolerance (initial MacAdam): 2; Luminaire luminous flux: 600 lm, Luminaire efficacy: 67 lm/W; service life: 100000h at 90% luminous flux or 50000h at 95% luminous flux; includes ballast unit Slave luminaire for DALI control (DALI only); modular, high quality optical unit consisting of reflector and LED light chamber integrated in optimised thermal management of die-cast aluminium; smooth reflector in coated black; reflector made of high-quality, UV-resistant polycarbonate; luminaire unit can be fitted quickly without tools using EASY-CLICK catch; IP44_IP20; luminaire wired with halogen-free leads; power connection: 5-pole connector terminal, loop-in/loop-out possible; mains voltage: 220-240 V / 0/50/60 Hz, for use with 220V DC central battery ; installation: tool-free quick installation using spring clips in ceilings of thickness 1-25mm; ceiling cutout: 100x100 mm, recessed depth: 106mm; weight: 0.56 kg; Note: UGR<19 for office applications compliant with EN12464 (depending on luminaire type); Note: Please order seating surround (planar surround) separately for installing the luminaire flush with the ceiling (see Accessories)