Connect Your Solar Panels To Your Power Station With This Versatile Adapter Cable. Featuring Mc4 Solar Connectors On One End And A Dc 5.5Mm X 2.1Mm Plug On The Other It Includes Additional Adapters For Dc 3.5Mm X 1.35Mm Dc 5.5Mm X 2.5Mm And Dc 8Mm Connections. The 16Awg Copper Wire Ensures Efficient Power Transfer And The Ip65 Waterproof Rating Provides Durability. The Cable Is 1.5 Meters Long. Please Ensure Correct Polarity Before Connecting.