Series: Flat Polymero Base: metal, powder-coated. Diffuser fastening: push lock. Diffuser: plastic (PMMA), opal. Colour: white Diameter: 515 mm Height: 150 mm Lamp: LED Socket: without socket Colour temperature: 3000K Colour rendering index (CRI): 83 System power: 21 W Rated luminous flux: 1900 lm Luminous efficiency: 90 lm/W Control gear: AC power, DALI dimmable Protection class: I Type of protection: IP 40