This 2 x 30 ft. Solar Panel Extension Cable set (30 ft. Red + 30 ft. Black) is designed to enhance your solar power system. Made from 10AWG tin-plated copper wire, it offers superior conductivity and thermal efficiency compared to pure copper, reducing power loss and improving charging efficiency. The cables are certified for reliability and safety, with a temperature range from -40°C to 90°C, and a test voltage of 6500V. The durable PPO flame-retardant insulating material provides extra-thick insulation that can withstand extreme temperatures from -40℉ to 194℉ (-40℃ to 90℃). With an IP67 waterproof rating, these cables are resistant to moisture, UV rays, and corrosion, ensuring long-lasting outdoor performance for up to 30 years. Each cable comes with pre-installed male and female waterproof connectors, allowing for easy and secure connections to extend cable length as needed. The self-locking system ensures a stable, tight connection between multiple cables. These solar extension cables are suitable for solar power plants, RVs, boats, and various outdoor applications. They are compatible with most solar modules and available in different wire gauges and lengths (10AWG and 12AWG) to meet your solar panel system requirements. Perfect for reliable, long-term use.