12.75'' H x 4.86'' W Black Polyethylene Plastic Fence Energizer

This product is a dual purose 2 Joule model. This energizer runs on 110 volt ac or 12 volt battery power. The P20 will control 50 miles of fence or 200 acres. It can be used with a 20 watt solar panel and a 12 volt battery (both not included).