As a thoughtful idea very correct, however we did not succeed. Maybe it's because I didn't charge it from the socket the first time, but it didn't last for more than 3 minutes as a fan, it emitted more like a light. The same thing happened after 7 hours in the sun (according to the instructions, it needs 6 hours in the sun for full charge). I will charge it from a socket, try it again, and I will come back.

Nice gadget, the first two levels of the fan are very low, the other two are satisfactory.
The lights are fine. It charges the phone.
I haven't tried it outside to see the battery life and charging time, I will come back...
Anyway, it seems interesting!