Gadget nothing more.

Technological product friendly and cheap appearance. But only a gimmick.
Listed more:
- Charging (partially) my smartphone (ZTE)
- Compact
- Cheap
But:
less side:
- Recharge USB jack on a bit long. Announced 5 hours (it can be 6 or 7 pm if the battery is really flat)
Solar charging: After 3 days motionless in the sun he still took more than 3 hours of connection to a USB port to complete the charge.
Roaming hung backpack: after a week almost nothing in the battery. I think it is an illusion to hope fully recharge solar.
- Even fully loaded, just enough to lend a bouste when the smartphone is feeble (Based on 15% never go up the load above 70%). And again ...
I doubt 1500mA / h announced.
- Lack indication, however short, remaining charge level in the battery. You never know where we are.
- Above all, especially the most serious is that when the battery is completely discharged in the smartphone is the smartphone that starts redécharger in the battery.
There is not even a vulgar blocking diode 5 cents to avoid this phenomenon.
In other words we must carefully monitor the operation to disconnect immédiateùment the solar battery as soon as the smartphone charging light goes out at the risk of ending up quickly with both batteries flat. A peak. That is unacceptable.
In short, a gadget not finished lower prices.

In conclusion this device is totally unfit for "Solar" function for which it is marketed. USB marchotte it so-so but even pay a few Euros more, a charge level indicator and especially a blocking diode should always be added to the product to be really operational and deserves 1 more star.

Nevertheless, the performance will remain completely inadequate to the long hike without plug for days.

Finally I do not see what it can actually be used to dredge a green hand girlfriend. If you need a USB plug for charging as much charge the smartphone directly (or other) directly.
In short I put 2 stars for the flashlight that it works very well.