Dare DE-600 Enforcer Series Plug-In Fence Energizer, 110V, 1.5 Joule OutputControls up to 150 acres overgrown fence. Outperforms 50 mile energizers. Recommended use for cattle cows, llamas, horses, deer, pigs and dogs. All weather construction for longer life. Peak Joule output under the most difficult fence conditions. Energy output (in joules): 1. 5 Acres controlled (up to): 150 Outperforms 110 volt energizers rated at: 30 50 miles Controls up to 150 acres overgrown fence Outperforms 50 mile energizers Recommended use for