Recessed LED downlight featuring advanced technology and sophisticated design. Housing: die-cast aluminium constructed as heat sink. Square cover plate: die-cast aluminium, powder coated. Round ceiling cut-out also with square types. MultiLumen: Luminous flux adjustable in different steps. Best colour rendering index Ra>90. Installation without tools thanks to spring fastening system. Connected converter included in separate gearbox. With connecting cable (L 250 mm). Suitable for through-wiring with separately available accessories. Through-wiring box (5 pole) available as accessory. Series: LEDONA square Reference Number: 901800.002 Colour: white Length: 220 mm Width: 220 mm Height: 3 mm Cut-out diameter: 210 mm Ceiling thickness S: 1-20 mm Recess height: 108 mm Luminaire: recess height: 108 mm Weight: 1.71 kg Lamp: LED Socket: without socket Colour temperature: 3000K Colour rendering index (CRI): 92 Colour tolerance (McAdam): 2 SDCM Rated life: 50000 h (L90/B50) System power: 12 W Rated luminous flux: 1650 lm Beam angle Down: 90° Glare evaluation RUG (4H 8H): 19.7 Luminous efficiency: 138 lm/W System power 2: 19 W Rated luminous flux 2: 2650 lm Beam angle Down 2: 90° Glare evaluation RUG (4H 8H) 2: 21.3 Luminous efficiency 2: 139 lm/W System power 3: 27 W Rated luminous flux 3: 3500 lm Beam angle Down 3: 90° Glare evaluation RUG (4H 8H) 3: 22.3 Luminous efficiency 3: 130 lm/W System power 4: 41 W Rated luminous flux 4: 4950 lm Beam angle Down 4: 90° Glare evaluation RUG (4H 8H) 4: 23.5 Luminous efficiency 4: 121 lm/W Light outlet: direct Light sharing: symmetrical Control gear: Regulated power supply Voltage: 220 - 240 V / 50 Hz, 60 Hz Power factor: 0.95 Protection class: II Luminaires on B10A fuse: 31 Luminaires on B16A fuse: 50 Luminaires on C10A fuse: 52 Luminaires on C16A fuse: 85 Inrush current / Inrush current duration: 5 A / 50 µs Ripple current / Flicker: 3 % Total harmonic distortion: 10 % Type of protection: IP 20 Ambient temperature: 5 °C to + 35 °C Impact resistance: IK03 Filament test: 850 °C Safety marks: Do not cover the recessed luminaire! Conformity mark: CE