About This Powerful Electric Fence Energizer: With a 190*161 MM, 18.5V/3W solar panel, 0.4 joule output energy, energizes up to 20 miles of electric fencing Long Operating Time: With a 12V/4.5AH sealed lead acid battery, the solar fence charger operates up to 14 days without sun High Reliability: Solar powered electric fence work under extreme conditions(-20-80℃) Long Durability: The fence charger is made to last with tough IPX4 waterproof ASA outer casing. Note: The internal battery of the Solar Electric Fence Charger is not connected for safety purpose, please open the battery cover and connect the battery before using(Red cable connects to the red positive(+) battery terminal, black cable connects to the black negative(-) battery terminal)) Overview Brand : ANDMON Material : Lead Item Weight : 2.7 Kilograms Efficiency : High Efficiency Included Components : Electric Fence