110-volt energizer with 1.2 stored joules of power. Delivers reliable, low-impedance power for properties up to 60 acres. Equipped with power surge and radio interference protection. Perfect mid-range, general-purpose energizer for all types of multi-strand fence material. 8,700 volts open line. 5,400 volts @ 500 ohms. Large easy to see pulsing power indicator Tough, impact resistant, ABS plastic case Large, easy grip, power terminal knobs 3 yr. warranty includes protection from remote indirect, lightning strikes.