Square recessed luminaires with selectable light color, wattage setting and strong glare control, for 625 x 625 mm ceiling systems. Product features: Frame made of extruded aluminum. Polystyrene diffuser. Service life (L80/B10): up to 50,000 hours (at 25 °C). Product advantages: Very versatile thanks to selectable CCT and wattage setting (Power Select - PS). Good glare control (UGR < 19). Low-flicker light thanks to special electronic ballast. Energy savings thanks to system light output of up to 110 lm/W. External driver for increased flexibility and easy installation. Versions with DALI electronic ballast available. 5-year guarantee. Areas of application: Direct replacement for luminaires with fluorescent lamps. Offices, conference rooms. Reception areas, entrance areas, corridors, elevators. Suitable for ceiling recessed systems with a grid dimension of 625 x 625 mm. Technical features: External ballast with a switch for selecting the preferred light intensity included. Separate switch for selecting the light color pre-installed during installation. Suitable for operation with Emergency Conversion Box. Accessories available for various installation options. Safety clamps pre-installed.