Series: HELEDON maxi Cylindrical surface-mounted downlight. Housing: die-cast aluminium, powder-coated. Internal ceiling frame polycarbonate with bayonet mounting. Black plastic ring and recessed LED to prevent glare from the side. Optical assembly with lens made of plastic (polycarbonate) for the best homogeneous light distribution - can be changed without tools. Best colour rendering index Ra>90. Suitable for Ceiling mounting. Easy installation with a separate ceiling frame with bayonet mounting and plug connection. Driver integrated. Connected via plug-in connector. High quality converter without flickering and stroboscopic effect. The following accessories can be mounted without use of tools: interchangeable lenses, decorative glasses, honeycomb louvre, clear and frosted diffusers, white interchangeable plastic ring. Colour: silver Diameter: 123 mm Height: 183 mm Lamp: LED Socket: without socket Colour temperature: 4000K Colour rendering index (CRI): 92 System power: 35 W Rated luminous flux: 3900 lm Beam angle Down: 13° Luminous efficiency: 111 lm/W Control gear: Regulated power supply Protection class: I Type of protection: IP 20