There was some discussion earlier about the nature of the fuel for the
lamp. Although it is explicitly battery operated (see vending machine!),
It was generally assumed not to be a conventional torch/flashlight.
Well, a friend knew that I was in need of a better power failure light,
and gave me a lamp. It looks like an ordinary "hurricane lantern". But,
instead of combustion, it has more than a dozen LEDs! The "fuel tank"
has a door on the bottom for batteries. What appears to be
a liquid fuel tank cap rotates, and is actually an ON/OFF switch and
dimmer control! I'm not used to seeing reasonably smooth dimming with
LEDs.