RadioRA 2 by Lutron Electronics is a wireless light-control system that provides convenient and intuitive control of lights, shades, audiovisual devices and temperature. Designed to control a single room or entire house, a PC setup tool allows the programmer to define zones and locations, light and shade levels, and occupancy/vacancy sensors from one convenient location. The system allows for scalability from two to 200 devices, including dimmers, shades and keypads.