A 2 Gang 2-Way White V-Plus Dimmer suitable for mains lighting and most dimmable electronic transformers up to a maximum load of 2 x 300 Watts. This switch works in conjunction with incandescent, halogen and CFL light bulbs; it is Not suitable for dimmable LED lamps. Offering superior overload protection via a micro-processor, it will protect itself from failure by turning the lights down, or off, until the load is corrected.