Easily adapt 5.5mm to DC8020 to plug solar panels into solar generator.Exactly what you needed to switch between a different size cable ,use for another solar generator set up. 【Wide Application】 100W 150W 180W 200W Solar Panels Portable Solar Panels With 5.5mm Male Solar Panel Charge Your Portable Power Station WITH DC8020 Connector ，（If your solar panel only with Solar Connector, you need DC5521 to Solar Connector Adapter ） DC5521 input port, DC8020 output port (8.0MM outer diameter, 2.0MM middle needle) 【 High Quality 】5.5mm/DC5521 Convert DC8020，You can use Cheap Aluminum Frame Solar Panel to Charge your Portable Power Station 【Multi-Purpose】 5.5mm Also AS DC5521 Input: 5.5mm, Output: 8020, Compatible with Solar Generator Power Station Explorer Series 15000W What you get : 1* 5.5mm to DC8020 DC adapter Easily adapt 5.5mm to DC8020 to plug solar panels into solar generator.Exactly what you needed to switch between a different size cable ,use for another solar generator set up.