The PBX120 6 or 12-Volt DC Fence Energizer is fast and easy to set up. It provides powerful protection, even with heavy weed pressure. Battery-saving mode maximizes battery life. With 1.2 output joules, it powers up to 30 miles or 100 acres of fence. It is suitable for cattle, horses, pigs, and other small pets or nuisance animals. This low-impedance energizer has a highly visible, LED lights that indicate the energizer is working and powering the fence. Works with steel wire, aluminum wire, and poli-products.