RadioRA 2 Maestro local controls function like standard dimmers, 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. RadioRA 2 Maestro dimmers incorporate advanced features like fade on/fade off, delayed long fade to off, and rapid full on. RRD-6ND neutral dimmers require a neutral wire and can handle 600W/600VA installations. They are suitable for use with incandescent/halogen lighting technologies.