Zareba, 50 Mile AC Low Impedance Fence Charger, Use To Help Control All Types Of Animals, Even Predators, Powers All Types Of Fences, Including High Tensile, Poly Wire & Poly Tape In Heavy Weed Conditions, Maintains Maximum Energy On The Fence & Delivers Safe, Effective High Voltage Shocks With Digital Timing, Features Include Fuseless Design, Moisture Resistant Internal Components, An Indicator Light That Shows Charger Is Working & A Rugged, Weather Resistant Case, 2 Joule Output At 75 Ohms, 115V, 60 Cycle, Pulsed Output, 1 Second Intervals, Uses 10 To 18 Gauge Wire, UL Listed, Comes With A 2 Year Warranty That Includes Damage Caused By Lightning, 3 Year Warranty When Registered On Line With Proof Of Purchase.