Downlight luminaires with aluminum housing and very high luminous efficacy. : Lifetime (L80/B10): up to 100,000 h (at 25 °C). Consistent lighting color ≤ 3 SDCM. External driver with Multi Lumen function of up to 5580 lm. Aluminum luminaires with 3 different cut-outs and opal diffuser. Very homogenous light distribution. : Energy savings thanks to high system efficacy: up to 155 lm/W. Through wiring possible via included connector box. High grade polycarbonate front frame for reduced overall luminaire weight. Easy and quick installation thanks to connector box with 3-pole toolless terminal. Uniform light with minimized glare thanks to included reflector and diffuser. Highly versatile due to selectable lumen steps (Multi Lumen) via dip switches on the driver. Well suited for retrofitting using an extension ring as separate accessory. : Direct replacement for recessed luminaires with fluorescent lamps. Offices, conference rooms. Reception areas, foyers, corridors, elevators. : Security rope for luminaire included. External control gear included. Connector box with 3-pole terminal included. Surface mounting frame available as separate accessory. Gray and black exchangeable rings available as separate accessory. Extension rings are available as separate accessory. Extension ring D190 for retrofitting D150 luminaire, extension ring D240 for retrofitting D200 luminaire. : All electrical connections must be made by a qualified person.. Caution, risk of electric shock.. The luminaires are not suitable for covering with thermally insulated material..