Switch turns UPB dimmer into a three-way controller
UPB technology offers more signal strength than X10
Control any light in your home from two different switches. By installing the HAI Auxiliary Switch, you can turn an HAI UPB 600-Watt Dimmer (sold separately) into a true three-way unit to control it remotely from another room in your home. This HAI Auxiliary Switch can control and dim a lighting load up to 600 watts using Universal Powerline Bus technology. UPB technology uses your existing wiring, so you don't need to run wires in order to take advantage of its properties.