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 D: 380 mm Height H: 78 mm Lamp: LED Socket: without socket Colour temperature: 4000K Colour rendering index (CRI):80 System power 1: 19 W Rated luminous flux 1: 1400 lm Luminous efficiency: 74 lm/W Control gear: AC power, DALI dimmable Protection class: I Type of protection: IP 43