The Gallagher MB150 (part number 388311) is a robust and versatile 1.5 Joule electric fence energizer designed for effective livestock containment on small to medium-sized properties. Capable of powering up to 15 km (9 miles) of multi-wire electric fence, this energizer offers dual power flexibility, operating efficiently on either 230V mains power or a 12V battery. Its durable, water-resistant casing and built-in lightning diverter ensure reliable performance in diverse weather conditions. Ideal for containing cattle, horses, sheep, and other farm animals, the MB150 provides a powerful and consistent shock for optimal fence security.