28W SunPower Solar Panel 2 USB Ports with Digital Ammeter
Features Built-in Ammeter: The ammeter of this 28w solar panel charger can measure the current real-time value. Note that the value depends on your connected devices, sunlight intensity and cable used. If your device has an input current of 1A (such as the iPhone), the amount of ammeter will show between 0.8A and 1A in theory. Exclusive Smart IC Technology: With the built-in intelligence chip, our solar phone charger detects your device then deliver its fastest possible charging speed(single m