SLAVE UNIT – this requires a master switch in the same circuit to function, so is only for use in two way (or multi way) circuits used in conjunction with a V-Pro Master switch. This will not function as a standalone dimmer The Varilight V-Pro series comprises programmable intelligent dimmers with a choice of dimming modes for wider compatibility; some have a push-on/push-off switch action with rotary dimming and others (called V-Pro IR and V-Pro Eclique) have touch/remote control. All V-Pro dimmers offer superior dimming technology to deliver the best possible dimming performance for a given load. V-Pro are the dimmers of choice recommended by most good quality LED manufacturers for use with their dimmable LED lamps. Controlled by a micro-processor, V-Pro dimmers offer sophisticated overload protection. This means that if you mistakenly connect your dimmer to too many lights or transformers it will protect itself from failure by turning the lights down or off until the load is corrected. Twin Plate For use with master only Separate up and down dimming using the same control button New design for seamless integration with the Varilight range of decorative wiring accessories Available in grid formats to enable maximum wiring flexibility and customer choice