Square wall and ceiling luminaire with rounded corners. For wall or ceiling mounting. Matt diffuser with finely structured surface, uniformly illuminated. Luminaire luminous flux 3400 lm, connected load 31,00 W, luminous efficiency of luminaire 109 lm/W. Light colour neutral white, correlated colour temperature (CCT) 4000 K, general colour rendering index (CRI) Ra > 80. Mean rated service life L80(tq 25 °C) = 50,000 h. Luminaire body sheet steel. Surface coated white (RAL 9016). Diffuser of PMMA. Large construction, 520mm x 520mm. Permissible ambient temperature (ta): -20 °C - +25 °C. Safety class (EN 61140): I, protection rating (DIN EN 60529): IP40, impact resistance level in accordance with IEC 62262: IK02, testing temperature of wire glow test in accordance with IEC 60695-2-11: 650 °C. With electronic transformer, switchable. The luminaire complies with fundamental requirements of applicable EU regulations and product safety legislation and bears the CE symbol. The luminaire is also ENEC-certified by an independent testing authority.