LED surface-mounted luminaires for ceiling and wall mounting. With limited surface temperature, suitable for use in fire-hazardous rooms in accordance with DIN EN 60598-2-24. In conjunction with installation accessories, also suitable for sawn ceiling cutouts. Suspended installation possible using optional accessories. Cover made of translucent PMMA with internal grooved prism structure and high transmission rate of over 80%. With asymmetrical wide beam light distribution. Luminaire luminous flux and light color fixed. Rated luminous flux 4900 lm, rated power 37 W, maximum luminaire luminous efficacy 132 lm/W. Light color neutral white, correlated color temperature (CCT) 4000 K, general color rendering index (CRI) Ra > 80. Color location tolerance (initial MacAdam) = 3 SDCM. Average rated service life L80(tq 25 °C) = 50,000 h. The light source is replaceable in accordance with the ecodesign requirements (Regulation (EU) 2019/2020). Luminaire body made of sheet steel. Surface coated silver gray (RAL 9006). Sheet steel, contour-adapted to the convex bowl shape, with integrated cable duct for mains supply and forwarding. Dimensions (L x W): 1494 mm x 212 mm, luminaire height 70 mm. Plastic head pieces color-coordinated with luminaire body. Permissible ambient temperature (ta): -20 °C - +. Protection class (EN 61140): I, protection type (DIN EN 60529): IP50, shock resistance level according to IEC 62262: IK03, test temperature glow wire test according to IEC 60695-2-11: 650 °C. Weight: 5.5 kg. With electronic control gear, digitally dimmable (DALI). Control gear in accordance with the DALI-2 standard (EN 62386). Luminaire can be switched and dimmed using a touch function via DALI control terminals (Touch DIM). The control gear is replaceable in accordance with the ecodesign requirements (Regulation (EU) 2019/2020). The luminaire can be equipped with the Monitoring ready (MOR) functionality on request. The product meets the basic requirements of the applicable EU directives and the Product Safety Act and bears the CE mark. In addition, the luminaire is ENEC-certified by an independent testing body. Luminaire 10 years, spare parts (LED module, control gear, optical system) 15 years after the invoice date, subject to reasonable changes that serve progress.