Revolutionary tunable white (TW) phase-cut dimmer. It can control both brightness level and light color. Designed for use with SG-LEDDIM lights. Until now, tunable white was only possible with DALI Type 8. With TW LEDDim, only a conventional power supply is needed. The control can be done manually or via the SG app "SG Smart." To change the color temperature, simply perform a double-click on the rotary knob. The current setting can be saved as a recallable scene using the four buttons, and it can be retrieved with a single button press. In conjunction with an SG Smart Gateway, you can also set a daylight rhythm, allowing color and intensity to change throughout the day. You can choose the standard rhythm or set your own.