Rectangular LED ceiling surface-mounted luminaire with light elements made of lens systems and cubic shielding elements with high efficiency. Surface-mounted luminaire for single or light strip applications. The optical system with a precisely coordinated combination of LED lenses and shielding elements ensures very high visual comfort with very high lighting performance. With symmetrical, limited, wide beam light intensity distribution. Glare rating according to UGR classification (EN 12464-1) 80. Color location tolerance (initial MacAdam) = 3 SDCM. Average rated service life L80 (tq 25 °C) = 100,000 h, average rated service life L90 (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 white (RAL 9016). Anti-glare cubes silver gray, with fine surface structure. Dimensions (L x W): 1509 mm x 170 mm, luminaire height 46 mm. Protection class (EN 61140): I, protection type (DIN EN 60529): IP40, shock resistance level according to IEC 62262: IK03, test temperature glow wire test according to IEC 60695-2-11: 650 °C. Weight: 6.8 kg. With electronic control gear, digitally dimmable (DALI). Control gear according to DALI-2 standard (EN 62386). Luminaire can be switched and dimmed using a touch function via DALI control terminals (Touch DIM). The control gear can be replaced in accordance with the ecodesign requirements (Regulation (EU) 2019/2020). Control gear is idle-proof and protected against incorrect connection, short circuit, overload and overtemperature. Output ripple of the control gear = 4% for effective control of the LED system and flicker-free light. 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. The luminaire is part of a range of recessed, surface-mounted and suspended luminaires that are coordinated in appearance. Project-specific versions with varying luminaire features are available on request. Luminaire 10 years, spare parts (LED module, control gear, optical system) 15 years after the invoice date, subject to reasonable changes that serve progress.