Square recessed luminaires 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: 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. Office rooms, conference rooms. Reception areas, entrance areas, corridors, elevators. Suitable for ceiling recessed systems with a grid size of 625 x 625 mm. Technical equipment: Accessories available for various installation options. Safety clamps pre-assembled. External ballast included. Suitable for operation with Emergency Conversion Box. Connection box with 5-pin terminal for through-wiring for cable cross-sections up to 2.5 mm² available separately.