A lamp that can also be used to recharge a smartphone

Until now there was the backup batteries that included a lamp when necessary. Now there are flashlights that can recharge a smartphone in case of need. He had to think! So we can have a real lamp in his bag that can serve us when needed to illuminate but also aid in case of lack of battery. It's very convenient. What a great idea.
Coté use? when the first use must remember to remove a small plastic washer that preserves the battery (or last photo).
If not rocket science: is pressed once, there is the max brightness. Another time, the light is less strong. A third time the light flashes. One last time and turned off the light.
The torch is well in hand and is apparently solid. I dropped it twice and it is intact.
You can ask the torch and pull the end to have more light in the vicinity.
I have still a problem: I have almost every time to shake it lights (and even before I drop the torch).
Despite this flaw the lamp is very fits in a handbag especially when traveling or hiking.
This test has been possible thanks to a promotional mailing