They are really that thin and work like a wireless transmitter switch. They are only transmitters though, you will still need to have an X-10 switch to control a light. The Slimline switch will also require a RF receiver! This is a very good addition to any system that is using macros. This switch could be mounted at the enterence of the home and used to trigger scenes like "Were home" and Were leaving". I don't think you will be able to mount it into a regular wall plate since the unit is one piece. You may have to rethink that plan.

Chris Couture