Electric Fence Energiser 12v Battery Power 1.5J-2J 10km Horse Fencing Kit (12KV). SOLAR Y BRANCH CONNECTORS: 1 male to 2 female(M/FF) and 1 female to 2 male(F/MM), it is compatible with solar cables or connectors in 14AWG to 10AWG, it could be used for paralleling solar panels.
eBay