Square recessed luminaires with Ra90, selectable light color (CS), and high glare control, for 600 x 600 mm ceiling systems and Zigbee 3.0 technology. Product features: IoT-enabled luminaire with Zigbee 3.0 technology. Extruded aluminum frame. Polystyrene diffuser. 5-pin terminal block, cable cross-section up to 5 x 2.5 mm². Service life (L80/B10): up to 60,000 h (at 25°C). Product benefits: Suitable luminaire for DIRECT EASY / VIVARES Zigbee and other Zigbee 3.0 lighting management systems. High technical performance with CRI90 and up to 118 lm/W. Highly versatile thanks to a selectable light color (CCT Select - CS). High color consistency with SDCM 3. Good glare control (UGR < 19). Through-wiring is possible with the included junction box. External driver for increased flexibility and easy installation. Low-flicker light thanks to a special electronic ballast. Advanced services such as power consumption monitoring and remote maintenance are available with Zigbee versions. Areas of application: Direct replacement for recessed luminaires with fluorescent lamps. Office spaces, conference rooms, reception areas, entrance areas, corridors, elevators, schools, and public buildings. Suitable for recessed ceiling systems with a grid size of 600 x 600 mm. Technical features: Accessories available for various installation options. Separate switch for selecting the light color during installation pre-installed. Junction box with 5-pin terminal block included. Safety cable for luminaires included. Safety clamps pre-assembled. External ballast included. Safety instructions: All electrical connections must be made by qualified personnel only. If the outer flexible cable of this luminaire is damaged, it may only be replaced with a special cable or with a cable available exclusively from the manufacturer or its service representative. Caution: Risk of electric shock. The luminaires are not intended for covering with heat-insulating material.