... , barrier, shutter, garages and so on.Specifications of the Wireless Remote Control Switch:Rated Voltage: 220VAC (Default) or 110VAC(Optional)Wireless Frequency: 433MHzDecode ... CodeRelay Output Mode: Inching, Interlock, Self-lockingRelay Output Type: 2 Channels 220VAC(Default) or 110VAC(Optional) Output, can contact load directly ...