6*18650 Power Bank Battery Box Holder Dual USB Type C Charge Shell With camping lights for iPhone Huawei 18650 Battery Cases

It works acceptable. The charging is not with the watts they say, but it charges well. The batteries don't fit well; it had to be completed with cardboard. The marker does not indicate the actual charge amount. The LEDs work very well and have good brightness. Generally, it can be bought.

It's a bit disappointing that there's no manual included.
The product seems well-made.

When the battery is about 50% remaining
It was charging at about 10 watts.
Charging is slow right now.

Fast charging is not possible, and when charging the phone with a regular cable, it's too slow to use. When using a fast charging cable, it seems to charge a bit slowly like regular charging. Press the power button twice briefly to turn on the flashlight.