The Lutron RadioRA 2 RRD-8S-DV-BL is a single pole smart light switch 120-277 volt which covers load up to 8 amp lights, 1/10 HP 3 amp motors. RadioRA 2 Maestro local controls function much like standard dimmers and switches, but can be controlled as part of a lighting control system. Local lighting controls are useful in locations where single circuits of lighting need to be dimmed or switched.