WL-SFB-A01 belongs to Zigbee wireless wall switch series, which can not only be used as a normal dimmer but also control the switches by connecting and communicating with the Zigbee network. When installing, just use the WL-SFB-A01 instead of the dimmer in 86-box and its mode of line connection is the same to usual wall switches that inputting/outputting by connecting with the live line.