Product Details. 【QUALITY MATERIALS】The solar panel cable is made of tinned copper: ppo + pvc material. Waterproof ip67, anti-aging, anti-ultraviolet, high temperature resistant, working temperature range: -40°f to 85°f. Rated Current】Y-type solar panel connector rated current : 20A(4mm²)/30A(6mm²) Rated voltage : DC1000V.Crimp the pins on the wires and connect them securely, it can work stably and perfectly even under high current and high voltage. Self-locking System】Each Y connector panel cable has a built-in lock, just press your fingers on both sides of the built-in lock on the male connector to easily connect or disconnect the connector. Easy Installation】Easy to use solar panel Y connector.The Y connector is designed to complete a solar (photovoltaic) panel array, typically used in parallel applications. Simple and reliable wiring. Packing list: 2 x Solar Battery Adapter. (Other products such as solar cells are not included.)