04-12-2013, 01:44 AM
How about a WeMo? No wires, but requires the person with the switch to be in a cellphone data zone and the person seeing the light to be at an outlet and in a WiFi network. With those conditions, no range limitations.
http://www.amazon.com/Belkin-Automation-...B0089WFPRO
http://www.amazon.com/Belkin-Automation-...B0089WFPRO