There are a few inaccuracies in the description of this product. 1. It says the power supply is "wired". Obviously this isn't the case and I knew that before I bought it. 2. Internal lithium battery? No it does not. 3. "One charge lasts several weeks." Not sure what it's like when it's not charging? The flashlight MUST have regular batteries or be connected to USB for power supply. If you disconnect USB without batteries, it won't work because it won't charge! 4. "Charging via USB". see above! This little flashlight is ok except I bought it because I think it's rechargeable - I have a fan that you charge via USB and it works as long as that charge doesn't run out and then you overcharge it USB to . It's not like this. It's just a battery powered flashlight. If you have a USB adapter or a computer, you can run it with that. If you don't have electricity or a charged computer, you'll need to put in batteries.
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