Housing:corrosionresistant cast aluminium; Mounting ring: plastic, white; Installation: recessed Dimensions:Φ213×77mm; Ceiling cutouts:Φ197mm; Power:21W; Lamp(s):LED 840; Colour temperature:4000K; Colour rendering:RA80; Total luminous flux of luminaire:1650lm; Beam angle:100°; Light distribution:Lambert; Service life:20,000h at 70% luminous flux; Degree of protection:IP20; Class of protection II; Mains voltage:220-240V/50-60Hz; Two fixing clips provided for tool-free installation in ceilings of thickness 1-20 mm