【Built-in Digital Ammeter】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 Efficiency】SunPower Solar Panels is the most durable panels at present, whose conversion efficiency can reach 24%. If clouds blocking the sun, this portable solar charger can detect intelligently the sunlight and restart to charge your electronic in 30s when there are enough sunlight. Foldable design and 4 carabiners is easy to carry for any outdoor activities such as camping trip, climbing, fishing etc..
【Exclusive Smart IC Technology】With the built-in intelligent chip, our solar phone charger detects your device then deliver its fastest possible charging speed( Single maximum output up to 5V/2.4A

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