LED downlight for ceilings with a cavity dimension = 36 mm. Recessed downlight for sawn ceiling openings. Installation in cast concrete ceilings using accessories. Tool-free ceiling installation using quick-mounting springs. Ceiling cutout Ø 425 mm, installation depth 45 mm. Cover panel made of translucent PMMA. With Lambertian light distribution. With predominantly direct light distribution. Increased lighting comfort through decorative ceiling illumination. Harmonious lighting effect through evenly illuminated light output. With HCL equipment for controlling the light color using a separate control unit (DT8). With Active LED system for controlling the light color. Rated luminous flux 4000 lm, rated power 32 W, maximum luminous efficacy of the luminaire 155 lm/W. Light color variable (warm white - daylight white), correlated color temperature (CCT) variable (2700 K - 6500 K), general color rendering index (CRI) Ra > 80. Color location tolerance (initial MacAdam) = 3 SDCM. Average rated service life L80(tq 25 °C) = 70,000 h, average rated service life L85(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 die-cast aluminum. Surface coated white (RAL 9016). Permissible ambient temperature (ta): -20 °C - +25 °C. Protection class (EN 61140): II, protection type (DIN EN 60529): IP20, protection type on the room side: IP54, shock resistance according to IEC 62262: IK06, test temperature glow wire test according to IEC 60695-2-11: 650 °C. Weight: 2.5 kg. With electronic control gear for switching, dimming and controlling the light color using a DALI Device Type 8 capable control device. Control gear according to DALI-2 standard (EN 62386). The control gear is replaceable in accordance with the ecodesign requirements (VO (EU) 2019/2020). The product meets the basic requirements of the applicable EU directives and the Product Safety Act and bears the CE marking. Luminaire 10 years, spare parts (LED module, control gear, optical system) 15 years after the invoice date available subject to reasonable changes that serve progress.