Ltpgta designer range of soft start dimmers all use existing wiring for easy installation the lightwaverf wire free switch can be used to control any number of lightwaverf dimmers as it is battery powered it can be positioned anywhere in the room without wiringltbr gtltbr gt2 way dimmers are identical to dimmer switches in appearance rooms with lights operated by two or more switches using a spur or loop circuit require a dimmer switch master and one or more 2 way dimmer