Solar Panels Charger with Digital Ammeter, BigBlue 28W SunPower Camping Solar Panel, Dual USB, IPX4 Waterproo (5V/4A Overall)

Built-in Digital AmmeterBigBlue 28w solar panel charger can measure the current real-time value, convenient to your use. Note that the value of actual outputs depends on your connected devices, sunlight intensity and the used cable. If your device has an limited input current of 1A (such as the iPhone), the amount of ammeter will show between 0.8A and 1A in theory. Higher Solar Conversion EfficiencySunPower Solar Panels is the most durable panels at present, whose conversion efficiency can reach