Parmak Super Energizer 5 Low Impedance 110/120 Volt 50 Mile Range Electric Fence Controller SE5 4 Low impedance 110/120 volt 50 mile range electric fence controller S.E. 5 Equipped with a built-in digital performance meter, which tells you the exact condition of fence; shocks through wet weeds and brush Over 8,000 volts of holding power with 500 OHM load. New color coded fence and ground terminals; red to the fence and black to ground; controls both predators and livestock, including sheep and goats Charges over 50 miles of fence  6.3+ Joules