Single luminaire of the wall-mounted light channel system for architectural lighting. The luminaire is part of a range of recessed, surface-mounted and suspended luminaires that are coordinated in appearance. System-relevant accessories such as wall-mounted brackets and head pieces are included in the scope of delivery. For wall mounting indoors. The opal, finely structured, homogeneously illuminated PMMA diffuser is flush-mounted. With Lambertian luminous intensity distribution. The direct light exit opening, with nominal mounting at the bottom, scatters an attractive grazing light onto the mounting surface. Luminaire luminous flux and light color are fixed. Rated luminous flux 3905 lm, rated power 37 W, maximum luminous efficacy of the luminaire 106 lm/W. Light color warm white, correlated color temperature (CCT) 3000 K, general color rendering index (CRI) Ra > 80. Color tolerance (initial MacAdam) = 3 SDCM. 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). Channel elements made of extruded aluminum profile, head pieces made of plastic (PMMA). Surface coated white (RAL 9016). Dimensions (L x W): 846 mm x 50 mm, luminaire height 75 mm. Protection class (EN 61140): I, protection type (DIN EN 60529): IP20, shock resistance level according to IEC 62262: IK03, test temperature glow wire test according to IEC 60695-2-11: 650 °C. Weight: 4.2 kg. The mains connection is made using a 5-pin connection terminal up to 1.5 mm2. With electronic control gear, digitally dimmable (DALI). Control gear in accordance with the DALI-2 standard (EN 62386). 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 law and bears the CE marking. Luminaire 10 years, spare parts (LED module, control gear, optical system) 15 years after the invoice date, subject to reasonable changes that serve progress.