RadioRA 2 RF Plug-in Modules are simple to install and easy to use. RF Plug-in Modules allow general purpose switching loads (RR-15APS-1) to be added to a system quickly and easily using Clear Connect RF technology. They can be hidden behind furniture or appliances. The RadioRA 2 Appliance Module (RR-15APS-1) switches up to 15 A of general purpose loads. It features Lutron's patented Softswitch technology to prevent the relay contacts from arcing, extending the average life of the switch.