60818265 P-INF Q190H 1800-940 LDO WH TL LED ceiling-recessed luminaire without trim; "stableWhite" LED luminaire, symmetric wide-beam light distribution with maximum luminaire efficiency and optimum photometric properties; lamp(s): LED1800-940; Colour rendering Ra > 90 (R9> 50), colour temperature 4000 K (neutral white); Chromaticity tolerance (initial MacAdam): 2; Luminaire luminous flux: 1800 lm, Luminaire efficacy: 120 lm/W; service life: 100000h at 90% luminous flux or 50000h at 95% luminous flux; includes separate control unit Slave luminaire for DALI control (DALI only); high-quality reflector unit fixed to modular LED lighting chamber by catch mechanism; high-efficiency LED lighting chamber is integrated in optimised, passive thermal management system of diecast aluminium; reflector: smooth, white painted finish; reflector made of high-quality, UV-resistant polycarbonate; luminaire unit can be fitted quickly without tools using EASY-CLICK catch; 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: 190x190 mm, recessed depth: 126mm; weight: 1.23 kg; Note: UGR<19 (aluminized reflector type) for office applications in compliance with EN12464 Note: Please order seating surround (planar surround) separately for installing the luminaire flush with the ceiling (see Accessories)