Esem 3.1 recessed downlight for indoor applications recessed (ceiling) Power consumption: 8W Power supply: 230Vac Lumen output at source: 512 lm (3000K) Delivered lumen output: 425 lm (3000K, 30°) 1 multichip power LED, 2-step MacAdam, 50 000h L90 B10 (Ta 25°C) LED colour: 2700K, 3000K, 4000K Optics: 20° tiltable ±25°, 30° tiltable ±25°, 54° tiltable ±25° CRI Colour Rendering Index: 80 Body material: body and trim in aluminium Finishes: white (RAL 9003), black (RAL 9005) RAL finish on request Thickness of installation surface: min 5 mm, max 25 mm power supply unit included includes 0,30 m cable Control system: ON/OFF, PUSH, DALI, 0/1-10V Ingress protection: IP40 Casambi-compatible version, controllable with the Casambi app, available on request Operating temperature: 0°C — +45°C Photobiological safety: photobiological safety: risk group 1 according to EN 62471:2006 Appliance class: class I (DALI), class II Weight: 300 g Dimensions: Ø74x80 mm Cutout dimensions: Ø65 mm Volume of thermal heatsink: Ø180x150 mm Energy efficiency class: F (light source) in accordance with EU 2019/2015 tested and approved via E.O.L. (End Of Line) test with functioning test and check of electrical power consumption