The PE2 110-Volt AC Fence Energizer is ideal for containing pets and keeping out small nuisance animals. It provides powerful protection, even with heavy weed pressure. With 0.10 output joules, it powers up to 2 miles or 8 acres of fence. It is suitable for small pets, poultry, or nuisance animals. This low-impedance energizer has a highly visible, flashing red light that indicates the energizer is working and powering the fence. Works with steel wire, aluminum wire, and poli-products.