The charger is of very poor quality and risk of electrical shock due to its deplorable quality manufacturing. You risk electric shock when removing because the French adapter remains on hold while the US decision stands bare. Once connected, it sizzled and makes sparks. He went directly to the trash.
The battery pack supplied with 14500 were incompatible with the lamp that requires longer and larger 18650. You can also remove one end of the lamp to make it shorter and make it compatible with the three AAA batteries adapter.
I suggest you buy another model.