The COOLIS 150Wh generator already included this solar panel adapter cable into the package.
You can recharge COOLIS 150Wh Power generator from your solar panel by this MC4 adapter cable.
One end is MC4(common solar panel connector), the other end is DC 3.5mm x 1.35mm (Outer diameter 3.5mm,inner diameter 1.35mm).
Universal for all the solar panel kit with MC4 connector; Cable Length is 200mm. Special short design for easy storage but enough for use.
2 year warranty from the purchase date..