We cannot foretell nor avoid when power outages would occur but just in case you want something safe and innovative as far as light sources are concerned, you may want to check out this neat lamp from Pankaj Singh.
Singh was able to come up with an interesting looking lamp by using a calculator and a honey bottle. The little lamp is good for about 4 hours of use, something which should be good in cases where lighting would be a must.
The lamp should be as useful as well for folks who may be hit by unforeseen calamities where power is cut off, a temporary solution which should really be something worthy to turn to.
They look a lot like glowing cubes which when placed facing a wall, creates a pattern that somewhat resembles the sun’s nebulae. Whether it is for immediate lighting alternatives or simply for adding ambiance, this is a neat lamp which you should really try out.