BEGA connection box 71089 with built-in DALI power supply and DALI USB interface for installation in light poles and for use in the modular LED bollard light system. DALI power supply: DALI output voltage 12-20.5 V DC, 16 V typ., DALI output current 250 mA, power consumption: 5.3 W. DALI USB interface: bidirectional data traffic, addressing, configuration, status queries, parameter specifications of DALI components, monitoring of DALI bus communication.