The PMX50 is ideal for smaller fence lines. Designed to deliver power to the end of the fence line, even under heavy weed loads. With 0.50 output joules, it powers up to 15 miles or 60 acres of fence. It is suitable for cattle, horses, deer, pigs, sheep, goats, and other small pets or nuisance animals. This low-impedance energizer has a highly visible, flashing red light that indicates the energizer is working and powering the fence. Designed for low maintenance and easy operation. The PMX50 mounts to the wall, a wood post, or a t-post. Works with steel wire, aluminum wire, and poli-products.