The solar panel looks very high quality and also works flawlessly.
This material bag 4 solar cells are sewn and on one side you will find a USB port to which you can attach the device to be charged.
When folded, you can store the solar charger easily into any backpack. It is neither too big nor too heavy.
Now to the technical:
The solar panel charges devices with a voltage of 5 volts and a current of up to 2.5 amps.
But these are the values that reaches the device in the best case.
I can load my smartphone with this unit outdoors in sunshine without problems. It also has not really lasted longer than the outlet.
Even my Power Banks I loaded it, so I though it is sometimes not so nice've electricity for my tablet and smartphone. No problem loading a 10,000 and a 20,000 mAh Power Bank was strong possible.
Smartphones and Power Banks but you can go with 1 Ah, that is, it works even when the sun does not directly at full speed it seems.
When charging Asus Transformer TF300T tablets of my I was already skeptical, because this requires 2 Ah for charging.
In direct sunlight, which has but works great and is what me a bit surprising that it has also loaded when times just stood a cloud before the sun and the light was not so extremely strong.
So I'm really impressed with the performance of this solar charger and really recommend it to anyone.
From me get this solar charger, the full 5 stars.
Please just let me know any questions in the comments.