Series: HB 502 Ceiling and wall luminaires. Housing: plastic (polycarbonate). Diffuser: plastic (polycarbonate), opal. Base and diffuser are sealed together.Quick mounting adapter galvanized steel sheet, with fastening screws. Driver integrated. Colour: white Diameter D: 400 mm Height H: 52 mm Lamp: LED Socket: without socket Colour temperature: 4000K Colour rendering index (CRI):80 System power 1: 30 W Rated luminous flux 1: 2500 lm Luminous efficiency: 83 lm/W Control gear: EB Protection class: I Type of protection: IP 20