Product Details:

• 12 Volt.
• 0.6 Joules stored energy.
• Powers up to 40 Acres (5 miles) of multi-wire permanent fence.
• Uses 12V deep cycle rechargeable battery, e.g Marine type (not included).
• Ready to use with Gallagher solar panels to conveniently charge the battery.  Compatible with 5 Watt Solar Panel