Surface luminaire with high luminous efficacy up to 150 lm/W. : Three-proof coating to improve the protection of the SMD LEDs. Very high luminous efficacy: up to 150 lm/W. Robust metal housing and PC diffuser. Through wiring possible. : Highly versatile due to selectable CCT and lumen steps (Multi Select). SMD LEDs are moisture-proof and corrosion-proof thanks to tri-proof coating. Energy savings up to 70 % (compared to luminaires that use fluorescent lamps). Robust structure with IK08. Easy installation and versatile application. : Direct replacement for luminaires with fluorescent lamps. Indoor applications. Industrial and commercial halls. Public areas. Corridors, stairwells, basements. : Mounting screws and dowels included. : All electrical connections must be made by a qualified person.. Caution, risk of electric shock.. Product in protection class I. All electrically conductive, metallic housing parts that can absorb voltage during operation or during maintenance in the event of a fault must be continuously connected to the protective earthing conductor..