In message , T i m
writes

I've got a genuine Tilley lamp and know it puts out a fair bit of
light [1] but not something I want Mum playing with. ;-)

Not sure my solution is really suitable for a 90 year old Mum, but we
have a Calor Gaz lantern and it is wonderful. No worry about keeping it
charged or finding batteries, and one lamp easily lights a whole room,
and is light (!) enough to carry around if required. We also have a
couple of matching single burner Gaz stoves, which share the same
cylinder type. Easy to make tea with a camping kettle.

We have ordinary torches too, of course, and several candles (with
spares, and matches/lighters), all in holders, from 'Wee Willie Winkie'
to a posh one with glass funnel. Even a paraffin lamp, but not Tilley,
just a wick and flame with glass funnel. Again, not necessarily the
type of thing recommended for a 90 year old.
--
Graeme