Ltpgtthe lightwaverf white onoff stop switch is designed to work with the lightwaverf inline relay the switch is battery operated and can be installed on any flat surface it is not connected to your mains wiring so can be situated anywhere the switch can be controlled using any lightwaverf home automation remote handset by your pc or smartphone when used together with the lightwaverf wifi link controller the switch has the extra stop function that enables the lightwaverf inline relay to