The Zareba 50 Mile AC Fence Charger is used to control livestock and predators. The Zareba Fence Charger powers up to 50 miles of fence area and can be used with the following fence types: steel/aluminum, poly wire/poly rope and poly tape. Made in the USA, the unit features compartmental, fuseless and damage-resistant construction. Low impedance technology allows for less battery drain and intuitive technology resists shorts when the fence is in contact with weeds. Comes with a two-year limited warranty that includes damage caused by lightning. Register your Zareba Systems charger online at ZarebaSystems.com within 30 days of purchase.