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 215 mm, installation depth 36 mm. With Lambertian light distribution. Harmonious lighting effect thanks to evenly illuminated light output. With HCL equipment for controlling the light color using a separate control unit (DT8). Rated luminous flux 1900 lm, rated power 18 W, maximum luminaire luminous efficacy 117 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). Luminaire diameter Ø 234 mm, luminaire height 42 mm. 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 level according to IEC 62262: IK06, test temperature glow wire test according to IEC 60695-2-11: 650 °C. Weight: 1.1 kg. With electronic control gear for switching, dimming and controlling the light color using a DALI Device Type 8-capable control device. 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 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, subject to reasonable changes that serve progress.