The "Home" control module is designed for up to 16-step or 24-step staircases. The LED stair lighting is controlled by two sensors which activate the spotlights sequentially as you ascend or descend the staircase. . . Each light dims again as you pass it, creating an impressive end result. The lighting system is also easy to install. For system set up, simply connect the LEDs to the control module and the rest works automatically. . . The control module was developed especially for indoor use. Total energy consumption, including sensors, is just 1W.