LED ceiling recessed light (complete light), use where space in the ceiling is limited: installation depth 90 (R9>50), colour temperature 4000 K (neutral white), colour tolerance (initial MacAdam): 2, light output: 9 W, light luminous flux: 1134 lm, light luminous efficacy: 126 lm/W, service life: 100,000 hours at 90% luminous flux or 50,000 hours at 95% luminous flux, with separate ballast unit DALI controllable light (DALI only), high-quality reflector unit locked to modular LED light chamber via bayonet lock, highly efficient LED light chamber integrated in the optimised, passive heat management made of die-cast aluminium, reflector: faceted, aluminium-sputtered, high-gloss, iridescence-free, reflector/cover ring one unit made of high-quality, UV-resistant polycarbonate (PC), cover ring white, mounting ring made of Polycarbonate glass fiber reinforced (PC), gray, tool-free quick assembly of the luminaire unit using a bayonet lock, IP44_IP20, luminaire wired halogen-free, connection: 5-pin plug connection terminal, loop-through possible, mains voltage: 220-240V / 0/50/60Hz, central battery compatible 220V DC, assembly: tool-free quick assembly using anti-slip retaining springs for ceiling thicknesses of 1-40mm, ceiling cutout: 150mm, installation depth: 81mm (ceiling thicknesses 1-25mm), weight: 0.79 kg, note: for office applications in accordance with EN12464 (UGR<19, reflector type aluminum sputtered) an additional anti-glare ring must be ordered separately