The Tunable In-line Controller is a small profile controller that allows for CCT tuning, dimming, and power control. With seven preset CCT options ranging from 2700K, 3000K 3500K, 4000K, 5000K, 6000K to6500K, you are sure to find the ideal color temperature. Designed with the buttons on the exterior, users can change the color temperature based on the mood of the space and also turn thetape light on and off.