BA800D has three ways to supply power：12 volts Battery/20w Solar panel/Adapter.

Energize Your Electric Fence Anywhere Use this DC-powered electric fence energizer to power your fence lines on the big enclosures in your property.

Featuring 8.0 output joules, this low impedance energizer is for use on a wide variety of animals, including horses, cattle and pigs as well as predators and pets. This is plugged directly into a standard outlet or use solar panle. Mount this fence charger using the hanging holes built into its durable, weather-resistant case.