MAINS ENERGIZERS Large to Mid-Sized Big power for big jobs. The large range of Speedrite mains operated energizers combine the highest energy output in its class with the convenience of remote control technology. Proven to work in the toughest environments, Speedrite energizers will power through thick over-growth and provide the shocking power to control even the most stubborn livestock. Speedrite energizers deliver a smooth Cyclic WaveTM pulse to the fence line ensuring the release of maximum energy where it is needed. All Speedrite energizers have a 2 year no-nonsense warranty. REMOTE PLACE? REMOTE CONTROL. Large farms present unique challenges for electric fencing. Large complex fence systems require maintenance and the time taken to reach remote areas can cost farmers money. The new large Speedrite energizer range presents a solution to these challenges by providing remote control and fault finding capabilities that will dramatically reduce maintenance es