Recessed ceiling downlight 24563WK3. Symmetrical wide beam light distribution. Hybrid Optics® Highly efficient and low-loss light distribution by means of reflector and optical lens. LED, 19.4 W luminaire connected wattage, luminaire luminous flux 2454 lm, half beam angle 56°, colour temperature 3000 K. Colour rendering index (CRI) > 80. With replaceable LED module with overheating protection and an expected service life of at least 50,000 operating hours. 20 years warranty of availability of LED module and wear parts. With LED power supply unit, DALI controllable, 220-240 V, 0/50-60 Hz in external housing. Protection class IP 65, safety class II. Luminaire made of cast aluminium, aluminium and stainless steel Unidure® coating technology . Flat trim ring made of aluminium alloy, colour white. Safety glass, clear. Reflector surface made of pure anodised aluminium. 2 screw cable glands with strain relief for through-wiring of the mains supply cable from ø 4-10 mm, max. 5 x 1.5 qmm. 0,7 m connection cable between the luminaire and the power supply unit. Dimensions dia. 220 x 115 mm. Luminaire for installation in a recessed opening whose dimensions are dia. 202 x 125 mm, or in installation housing 10443.