This product is mains powered and used to control two externally connected lighting loads (up to 300W each). The device features 2 rockers on the front for controlling the state of each of the loads. It is also possible to associate other devices.2 GANG 300W DIMMER MODULE RF Range up to 75m (open field) Can control up to 5 devices Can control either a group or a scene Pre programmed with HOLIDAY MODE function Mains powered STANDARD CARTON QUANTITY: 1 Suitable for use with the following load types and maximum load ratings only. Load Type 2G 300W Dimmer GLS 25-300W per channel Tungsten filament 25-300W per channel Tungsten halogen 25-300W per channel 12V ELV Tungsten halogen with wirewound or electronic transformers 35-300W per channel