Solar Panel Adapter Cable – MC-4 to DC with Multiple Connector Tips (5.5Mm X 2.1
For preventing polarity reverse, make sure polarity is correct before making your final connection. The solar panels output power should NOT EXCEED 100W. 】 The DC5.5 x 2.1mm plug solar extension wire can convert to DC5.5 x 2.5mm connector, DC8mm plug,and convert DC3.5 x 1.35mm adaptor,DC6.3 x 3.0mm connector.