Round luminaire housing in die-cast aluminium; surface white powder coated; suitable for wall or ceiling mounting; completely homogeneously illuminated, satinised PMMA cover; same luminance for all flat luminaires; energy-efficient LEDs with very good colour rendering; binning initial ≤ 3 MacAdam; available in the light colours 3000K and 4000K; CRI ≥ 80; min. 90 % of the luminous flux after 50000 hours; luminaire with 2 cable openings and plug-in terminals for through wiring; degree of protection IP 40 (direct/indirect) or IP 50 (direct); PC I; photobiological safety according to IEC 62471 risk group 0; up to ø450mm: shock resistance IK07; DALI dimmable with CLO function; optional non-dimmable; optional with LED emergency light with 1 h or 3 h battery and self test