Luther: The Aquadyne Octopus and Neptune Aqua Controller both utilize "X-10" technology. This allows you to utilize your homes electrical wires as conduits for the controllers to turn stuff on and off. It's not as reliable as say a Neptune Direct 8, with 8 controllable outlets on a strip, but it is a lot cheaper. I've been using it, on two dedicated 120 volt, 15 amp lines, and have never had a problem. I've read where some folk have had problems with the technology. Knock on wood.....