60818592 P-INF Q190H 1800-927-65 LDO SM WH LED ceiling-recessed luminaire (pre-assembled luminaire); "tunableWhite" LED luminaire, dynamic variation of colour temperature with constant luminaire luminous flux can be controlled via DALI signal (DT8 Standard); symmetric wide-beam light distribution with maximum luminaire efficiency and optimum photometric properties; lamp(s): LED1800-927-65; Colour rendering Ra > 90, colour temperature (tunable) 2700-6500 K (warm white-neutral white-daylight white); Chromaticity tolerance (initial MacAdam): 3; Luminaire luminous flux: 1750 lm, Luminaire efficacy: 76 lm/W; service life: 50000 h for luminous flux at 80% of initial value; with separate ballast unit Slave luminaire for DALI control (DALI only); dimming range: 1-100%, includes "Fade-to Zero"; high-quality reflector unit fastened to modular LED lighting chamber by catch mechanism; high-efficiency LED lighting chamber is integrated in optimised, passive thermal management system of die-cast aluminium; reflector: smooth, matt aluminized finish; reflector/trim made of high-quality, UV-resistant polycarbonate; white trim, removable; mounting surround of die-cast aluminium; 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: 190x190 mm, recessed depth: 123mm; weight: 1.5 kg; Note: UGR<19 (aluminized reflector type) for office applications in compliance with EN12464