42190672 ECOOS2 SLIM 5500-ZTW MSP L15 MPO LDE Purist Surface-mounted and pendant LED luminaire with micropsimatic optic, DALI controllable luminaire with LED converter; LED service life lasts 50000 h before luminous flux is reduced to 70% of the initial value Chromaticity tolerance (initial MacAdam): 3. Luminaire luminous flux: 4690 lm, Luminaire efficacy: 92 lm/W. Colour rendering Ra > 90, colour temperature (tunable) 2700-6500K (Zumtobel spectrum), spectral distribution balanced, spectral similarity at 4000K to the natural light spectrum (sunlight) and its CCT. Light guided via patented Curved Wave Guide light coupling and MPO-plus micro-pyramidal optic with multi-layer construction for defined light emission with UGR < 19 and L< 3000 cd/m² at 65° for computer screen applications; gear tray made of extruded aluminium section white, painted; luminaire comprises optic and gear tray; please order design end caps (available in various colours) and suspension kit separately. Luminaire wired with halogen-free leads. Glow-wire test: 650°C; Dimensions: 1512 x 152 x 48 mm, weight: 7.4 kg