Fi-Shock SS-600HL Electric Powered 1 Mile Poultry Fence Charger Electric powered Continuous AC output. Input Voltage: 110-120 VAC, 60 Hz, .035 A, 10 W; Indoor use only Choice of high or low output voltage. Output Voltage: High: 800 VAC +/- 20% open circuit voltage Low: 600 VAC +/- 20% open circuit voltage Light indicates unit is plugged in and operating properly One year limited warranty