2 DALI outputs with DALI-2 certification. Control power for up to 20 DALI drivers per DALI output. DALI output voltage of approximately 19 V, potential-free and short-circuit proof. Power supply for the electronics and DALI outputs via an integrated power supply for AC 230 V. LED display for showing operating states and the following error messages: Lamp defective, foreign voltage on DALI line, short circuit on DALI line, and no driver found. A pair of buttons per DALI output for the joint switching on and off and dimming of all connected lamps in direct operation. A button on the device front to deactivate direct operation and an LED for status indication of direct operation. Construction site function, which in the delivery state allows the switching on and off of construction site lighting via a bus button and an actuator, even if these devices have not yet been commissioned with the Engineering Tool Software (ETS). Housing: plastic, N-dimension. Rail-mounted device for installation on TH35 DIN EN 60715 mounting rail. Protection class: IP 20. Max. width 4 TE.