DALI control device for controlling the circadian daylight progression of DT8-Tc-capable lights. For light installation and flush-mounted sockets. 59x33x15mm. Standby loss only 0.12 watts. Device for controlling DALI-DT8 lights (Mode Tc) with a daylight progression adapted to the biorhythm. DALI real-time clock. Automatic summer/winter time changeover adjustable. Configurable: scene behavior and brightness progression. Setting the clock and easy adjustment of the desired daylight progression using the DALI Cockpit software tool. The DALI-CDC module is powered directly via the DALI bus. Internal battery for time (delivery 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 broadcast can be defined as the effective range. The color temperature progression is based on 24 support points (one for every full hour). The color temperature curve is interpolated between the support points. The behavior can be configured for each GOTO SCENE X command. The DALI-CDC can be switched to active or inactive or ignore the command. The scene behavior can be configured separately for the device address, for the effective range and for broadcast control. A brightness value can be defined for each support point (delivery state: MASK -> no influence on brightness).