The American Lighting INLINE-TW-CTRL In-Line controller changes the settings on your tape light system and used with Tunable Trulux Tape Lights. The Simple Select in-line Controller features an easy to install and use design that allows for simple on/off and dimming control, to dynamic color control without the hassel of overly complex control systems. For color temperature control at the push of a button, use the Tunable CCT controllers for fast and accurate adjustments from 2700K to 6000K and standard single color dimmer for warm dim.