Package Included - 1 x Black Solar Panel Extension Cable, 1 x Red Solar Panel Extension Cable. Both 14AWG solar cables are terminated with MC4-Connectors. Excellent Selection - The insulation layer of the solar cable is made of excellent PPO, which has the characteristics of good flame retardancy, self-extinguishing and high strength. Extension Design - The extension cable runs between the solar panel and charge controller or between two solar panels, allowing for greater space between both items.