I knew a prepper would have some good batteries somewhere
They are interesting little lamps, have you filled it yet? When you do check the bottom seals on the fuel tank, some are not 100%
I had a couple of these size in a camp shelter I built some years ago, as seen in the top right of the picture below.

- Inside+Left.jpg (46.02 KiB) Viewed 907 times
They were OK, but they leaked a bit from the seam around the bottom of the tank, so not good for in the house, but OK outdoors.