Inside a Q6M rechargeable LED camping light.

It's an odd name for what is actually a very well built little light.
I tested the running current with a fully charged cell and a DC clamp meter, and estimated run time based on cell capacity and reducing current with voltage as the cell is progressively discharged.
Night-light mode 6mA - estimated run time over two weeks.
Low mode 127mA - estimated run time over 20 hours.
Medium mode 334mA - estimated run time over 8 hours.
High mode 516mA - estimated run time over 5 hours.

There is a way to turn the light off without clicking through all the modes. If you hold the button for a few seconds it will turn off.

Here's a generic eBay search link to find these:-
https://www.ebay.com/sch/i.html?_odkw=q6m+usb+led&_sop=15&LH_BIN=1&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR0.TRC0.H0.Xq6m+usb+led+rechargeable+camping+light.TRS0&_nkw=q6m+usb+led+rechargeable+camping+light&_sacat=0

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