75 MILE RATING: This Zareba Low Impedence AC electric fence charger engergizes up to 75 miles in ideal conditions (no weeds) and up to 18.75 miles in heavy weed conditions WORKS IN HEAVY WEED CONDITIONS: Energizes up to 75 miles of electric fencing in ideal conditions (no weeds), up to 37.5 miles in light weeds, and up to 18.75 miles in heavy weeds FOR ALL FENCE TYPES: AC-powered charger for all types of electric fences, including high tensile, polywire, and polytape DURABLE DESIGN: The charger's rugged, heavy-duty cabinet and moisture-resitant internal components protect the circuitry from weather extremes POWERFUL ENOUGH FOR LARGE ANIMALS: With 4.0 output joules, the Zareba 75 Mile AC charger will support animals and livestock such as horses, cows, pigs, goats, exotics, and bulls KEEP PREDATORS OUT: The charger helps keep out predators and pests like rabbits, skunks, woodchucks, and racoons BUILT IN THE USA: Full-load tested in the U.S. after manufacturing - 3-Year Limited Warranty including lightning damage