EL300 AC Powered Low Impedance Energizer is with compact waterproof design, ideal for horse owners and pets.All Xstop mains operated Energizers have built in lightning protection and are tested under high industrial standard to ensure a reliability power delivering with outstanding performance day by day. Our EL300 energizer delivers power along 70KM of fence wire under ideal conditions and is easy to monitor with LED indicator light .Weatherproof designer with a rugged ,heavy-duty case protects the circuitry from weather extremes.Simply plug this charger to a nearby wall outlet to deliver power to your fence without having to worry about battery life.