ITEM NAME:20W Solar Panel Battery Charger Power Supply Car Boat Outdoor Yacht I3I9 20W Solar Panel Battery Charger Power Supply Car Boat Yacht Outdoor feature: 100% brand new and high quality. It can be used as an alternative charger for cars, trucks, caravans, ships, motorcycles, RV batteries or any 12V lead-acid batteries. It is waterproof and can be placed outdoors. The alligator clip has a built-in diode to help prevent reverse charging. You can install this item on the car and continue to charge it during the day. Provide 2 crocodile clips and charging cables for various equipment, emergency lights, advertising lights, traffic lights, electric fans, solar water pumps, motorcycles, boats, etc. specification:.Power: 20W. First, the solar panel surface of the solar panel faces the sun, and the rear USB output surface has a red light, indicating that the current output is normal. The front of the solar panel is waterproof, but it is best not to get water into the USB and DC ports.