Series: TOLEDO FLAT+ round Flexible round recessed multifunction downlight. Housing made of sheet steel, powder-coated. Luminaire frame: aluminium, powder-coated. Diffuser made of non-yellowing plastic (PMMA) microprismatic. LED backlight technology for homogeneous illumination of the entire light-emitting surface. Tunable white dynamically adjustable from 2700 K to 6500 K. Suitable for Human Centric Lighting (HCL) in combination with RZB light management systems. Suitable for Recessed ceiling mounting. Ceiling installation with spring system. Can be directly covered with thermal insulation material (applies only to the lower lumen levels). Including separate LED converter with connecting cable 250 mm. Suitable for through wiring as standard. With Casambi smart+free Bluetooth control for wireless network and operation using Android / iOS devices, free app available for download. Colour: white Diameter: 390 mm Height: 2 mm Cut-out diameter: 377 mm Recess height: 60 mm Luminaire: recess height: 40 mm Lamp: LED Socket: without socket Colour temperature: 2700K - 6500K Colour rendering index (CRI): 80 System power: 17 W Rated luminous flux: 1750 lm Beam angle Down: 78° Luminous efficiency: 103 lm/W System power 2: 17 W Rated luminous flux 2: 1800 lm Luminous efficiency 2: 106 lm/W System power 3: 17 W Rated luminous flux 3: 1800 lm Luminous efficiency 3: 106 lm/W Control gear: Dimmable Bluetooth converter Protection class: II Type of protection: IP 54