It has been some while since I was caught in a power cut. Naturally, when one happens, the torch you placed in a position of readiness contains only batteries which ran out of charge some time before the Light Brigade.
Today’s invention is a simple combination of a matchbox inside a box of candles, with the outside decorated in glow-in-the-dark strips.

It would be necessary to keep the box on an open shelf, but when the power station throws a wobbly, at least you will be able to locate all the makings of some domestic visibility.