Series: FLAT KREIS Decorative round surface-mounted luminaire. Base: plastic. Diffuser: plastic (polypropylene), opal. Diffuser fastening: spring system. Homogeneous and smooth light distribution. Colour: white Diameter: 380 mm Height: 78 mm Lamp: LED exchangeable Socket: without socket Colour temperature: 4000K Colour rendering index (CRI): 80 System power: 19 W Rated luminous flux: 1400 lm Beam angle Down: 121° Luminous efficiency: 74 lm/W Control gear: AC power, DALI dimmable Protection class: I Type of protection: IP 43