The Aeotec DSC 27103 is a micro dimmer that repeats Z-Wave messages and Z-Wave explorer frames for in-wall dimmers. Powered by 90-260VAC mains supply, this three-wire design wireless dimmer module runs on a neutral connection and has a 15-meter wireless range. During power failure, the non-volatile memory keeps all the programmed data pertaining to the operating status of units. Also, the compact form should fit into almost all gang boxes.