I have written about ultralight USB cables and this really miniature usb lamp but had you ever wished you could light a fire with your power bank? Now you can. Mine came free with the Hand Dynamo I just wrote about.
You can buy similar ones from Aliexpress here and here for between A$2 and A$5. They also come in USB C, as you can see.
Mine weighs just 12 grams. You can start a fire with it as you can see.
They clearly contain a magnetic switch which turns them on – and they time out after a few seconds too so you need to be ready, and quick!
A useful bit of emergency kit in case your mini-BIC is drowned or runs out of gas.



See Also:
How to Light A Fire In the Wet

