Portable Solar Charger with USB QC3.0 for Smartphones, Lanterns, and Fans

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The 21W Dual USB Portable Solar Panels boast high-quality single crystal solar cells, ensuring efficient conversion of solar energy into free power. These panels are designed with 100% waterproof ETFE materials, extending their lifespan and allowing up to 22% conversion of sunlight into usable energy.

The panels feature a dual USB QC3.0 output, supporting fast charging protocols of 5V-3A (15W), 9V-2A (18W), and 12V-1.5A (18W) (MAX). This wide compatibility ensures efficient charging for a variety of devices, including smartphones, tablets, GPS units, and digital cameras.

The foldable design of the solar panels makes them easily portable, allowing them to be conveniently packed into camping, hiking, or emergency bags. Additionally, the panels can be securely attached to backpacks, tents, trees, or bicycles, ensuring versatility in various outdoor settings.

When comparing the actual output to the claimed power, it's important to note that this product has three individual 7W panels, resulting in a total power output of 21W. The USB QC3.0 support for fast charging protocols may experience some losses during the solar energy conversion process, which can account for the slight discrepancy.

While this solar panel does not offer DC or USB-C output ports, it is compatible with both Android and Apple smartphones, though the charging cable is not included. Customers have the option to choose from a range of SUNYIMA solar panels, including 6W, 7W, 40W, and 100W models, depending on their specific needs and preferences.

The 21W Dual USB Portable Solar Panels have received a 3.9 out of 5-star rating from 51 customer reviews, reflecting a generally positive user experience. With its high-quality materials, efficient energy conversion, and versatile design, this solar panel aims to provide a reliable and convenient power solution for outdoor enthusiasts and emergency preparedness.

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