Warm Note:
1. The solar panel charger cannot store electrical like a battery. It needs to be exposed to direct sunlight, we recommend you connect your USB device to this solar charger under direct sunlight and no shadow environment.
2.Solar charging power depends on many factors, such as sunlight intensity, time of day, angle and position to the sun, whether the panel is shaded or not.
3. 20W refers to the maximum power of the solar panel and is not equal to the actual output power of the USB port.
4. The surface of the solar panel is waterproof, but the output port is not water-resistant. Please do not immerse the panel in water!
5. Fast charging is only effective if your charging cable and cell phone support fast charging. If your phone does not support fast charging protocols such as QC 3.0 or Type-C PD15W, the solar panel cannot provide fast charging!