The Portable Solar Panel will enjoy exciting outdoor challenges and fun-filled outdoor camping with you. It is also your friend and partner who brings you hope in an emergency. Specification: Maximum power: 120W Best Operating Current (Imp): 16.66A Best working voltage (Vmp): 18.0V Short circuit current (Isc): 6A Open circuit voltage (Voc): 21.6 V USB output voltage: 5V/2A DC output voltage: 18V/3.32A Folded Size: 16.1 x 11 inches Extended Dimensions: 46.1 x 16.1 inches Net weight: 1.5kg Package Contents: 1x 120W Foldable Solar Panel with Connector, 1 car cigarette lighter 2 battery clips 1 dual USB voltage regulator with cable 1 10-in-1 adapter 1 instruction manual Q: Is it waterproof? A: Yes, it is waterproof. Q: Can it be used in rainy days? A: I don't recommend using it on rainy days. Use on a sunny day or in direct sunlight. It works just fine. Notice: * This solar panel has no power storage function. Works with cell phone batteries for efficient charging * When charging the battery, you need to connect the controller to the battery first, and then connect the solar panel. If you have any questions about our products, please feel free to contact us, we will reply you within 24 hours!