This product is mains powered and used to control an externally connected lighting load (up to 300W). The device features a single rocker on the front for controlling the state of the load. LDM31S LDM32S LDM61S 1 Gang 300W Dimmer, 868.4MHz, Singapore 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 1G 300W Dimmer GLS 25-300W Tungsten filament 25-300W Tungsten halogen 25-300W 12V ELV Tungsten halogen with wirewound or electronic transformers 35-300W