0.5 Joule AC/DC Energizer

Choose either 110-volt plug or a 12-volt battery to power this 0.7-stored-joule energizer. Perfect for small properties with up to 30 acres of multi-strand fence material. 12-volt option is very useful during power outages or when 110-volt is not accessible. 8,200 volts open line. 3,300 volts @ 500 ohms. AC adapter and battery connector leads included Large easy to see pulsing power indicator Pulse indicator changes from green to red  indicating low battery power Tough ABS  case with easy grip terminal knobs