LED ceiling recessed light without cover frame 'trimless', use where space in the ceiling is limited: installation depth only 100mm, LED light 'stableWhite' with symmetrical, wide-beam light distribution with the highest luminaire efficiency and optimal lighting technology, equipment: LED2500-940, color rendering Ra > 90 (R9>50), color temperature 4000 K (neutral white), color tolerance (initial MacAdam): 2, luminaire power: 19 W, luminaire luminous flux: 2584 lm, luminaire luminous efficacy: 136 lm/W, service life: 100000h at 90% luminous flux or 50000h at 95% luminous flux, with separate ballast unit DALI controllable light (DALI only), high-quality reflector unit attached to modular LED light chamber via locking mechanism, highly efficient LED light chamber integrated in the optimized, passive heat management made of Die-cast aluminum, reflector: smooth, painted white, reflector made of high-quality, UV-resistant polycarbonate (PC), tool-free quick assembly of the luminaire unit via EASY-CLICK lock, 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 retaining springs for ceiling thicknesses of 1-25mm, ceiling cut-out: 190x190mm, installation depth: 100mm, weight: 1.12 kg, note: mounting frame (planar frame) for flush installation of the luminaire must be ordered separately (see accessories), for office applications in accordance with EN12464 (UGR<19, reflector type aluminum sputtered) an additional anti-glare frame must be ordered separately