☀️【3-in-1 Foldable Solar Panel】: ALLPOWERS portable solar panel 60W has 2 USB ports(5V/3A per port) for charging your 5V devices( like smart phones) , and 1 DC output(18V/3.3A) for charging your laptop, portable generator or 12V car battery; No additional battery needed for charging external devices, 100% green energy. ☀️【High Efficiency Portable Solar Panel】: ALLPOWERS portable solar panel 60W uses solar cells which is made from US, up to 22% efficiency, and the waterproof surface treatment effectively protects solar charger. .