DALI control unit for controlling the circadian daylight flow of DT8-TC capable lamps. For lamps and flush-mounted sockets. Standby loss of only 0.12 watts. Device for controlling DALI-DT8 lamps (TC mode) with a daylight course adapted to the biorrhythm. DALI real-time clock. Automatic summer/winter time changeover can be set.Configurable: Scene behavior and brightness history. Setting the clock and simple adjustment of the desired daylight progression via DALI-Cockpit software tool. The DALI-CDC module is supplied directly via the DALI bus. Internal battery for time (supplied with local time (GMT+1)). Function: The DALI-CDC sends the desired color temperature to the effective range every minute. An individual address, a group address or a broadcast can be defined as the effective range. 24 interpolation points (one for each full hour) form the basis for the course of the color temperature. The gradient of the color temperature is interpolated between the interpolation points. The beha