Square recessed panel luminaires, tool-free installation, for 600 x 600 mm ceiling systems. Product features: Extruded aluminum frame. Polystyrene diffuser. 3-pole terminal block, cable cross section up to 3 x 2.5 mm² (25 W and 30 W versions). 5-pole terminal block, cable cross section up to 5 x 2.5 mm² (36 W versions and DALI types). Luminaire versions with IoT-ready DALI-2 driver available. Lifetime (L80/B10): up to 60,000 h (at 25 °C). Product benefits: Tool-free electrical connection due to push button connector. Through-wiring possible with included connector box. Energy savings thanks to high system efficacy: up to 120 lm/W. Comfortable light and high color consistency. Extended services such as energy monitoring and remote maintenance possible with DALI versions. External driver for extended flexibility and easy installation. Low flicker light thanks to special electronic control gear. 5 years guarantee. Areas of application: Direct replacement for luminaires with fluorescent lamps. Offices, conference rooms. Reception areas, foyers, corridors, elevators. Suitable for recessed ceiling systems with grid size of 600 x 600 mm. Equipment / Accessories: Accessories for several mounting options available. Connector box with 3-pole or 5-pole terminal included. Security rope for luminaire included. Security brackets included. External control gear included. Not suitable for use with Emergency Conversion Box.