(Tru-Test)  The Patriot PS5 Solar Fencer is a low-impedance electric fence charger with an internal rechargeable 4-volt battery and a 2-watt solar panel. Charges up to 2 miles or 8 acres of fence. Suitable for variable environments and year-round use. The Patriot PS5 Solar Fencer is suitable for use with small animals and temporary use with cattle, horses, swine, sheep, and goats. 1-year warranty. (0.05 joules output)