The solar parallel adapter cables are precisely manufactured to ensure efficient power distribution between multiple devices or solar panels. Red cable: 1 male to 2 female (M/FF), Black cable: 1 female to 2 male (F/MM) allowing parallel connection of 2 solar panels. With IP68 waterproof rating, tinned copper core and PPO material, these connectors are non-toxic, abrasion-resistant, flame-retardant and UV-resistant. Their robust construction ensures durability and reliability and provides consistent performance in different climatic conditions. Rated current: 30A, Rated voltage: DC1000V Operating temperature: -40 to 221°C. The 2 to 4 solar panel parallel connector Y cable expands the range of solar power connections and allows you to connect 2 solar panels or devices to a single power source. With this solar panel cable, you can flexibly configure your solar system to get more energy. Safe, reliable, and tool-free Plug and Play solar connectors ensure a firm and stable connection