The black Zigbee adapter enables targeted control of individual spots as well as group switching within a URail system. It is simply mounted between the rail and the spot to be switched. Its delicate design makes it hardly noticeable. Whether for a cozy dinner or a movie night, the perfect atmosphere is always ensured. Note: This item is not compatible with all fixed LED lights and LED bulbs. Please check the dimmer compatibility in the technical specifications of the lights and bulbs.