This electric fence energizer features Dual Output Terminals, Control Board Operation Lamp and Output Indicator Lamp. Range: Up to 30 miles under ideal conditions Stored Energy: 2 Joules Input Voltage: 110-120 VAC, 60 Hz, 0.3 A, 10 W Output Voltage: 8.3 kV +/- 20% open circuit voltage intermittent DC output. Fi-Shock