0.2 Joules. High output, low impedance charger with sealed internal, rechargeable 12-volt battery. Charges up to 10 miles or 40 acres of fence. Operates up to 21 days without sunlight. Simple on/off switch. Strong aluminum frame with weather and UV resistant case to prevent moisture. Suitable for variable environments and year-round use. Fully portable with steel T-post or wood post fixing options. 2-year warranty including lightning.

Three days of full sunlight is recommended for initial charge.