10 MILE RATING: Energizes up to 10 miles of electric fencing in ideal conditions (no weeds) and up to 5 miles in light weeds LONG-LASTING CHARGE: This solar electric fence charger stores enough solar energy to operate for up to 2 weeks without sun VERSATILE INSTALLATION: The solar electric fence charger has built-in mounting bracket for T-posts, Y-posts, and round-wood posts POWERFUL ENOUGH FOR LARGE ANIMALS: With 0.15 output joules, it can support an electric fence for livestock and animals such as cattle, horses, bulls, and goats BUILT IN THE USA: Full-load tested in the U.S. after manufacturing - 1-Year Limited Warranty including lightning damage