From a Facebook post of an Oregon friend of mine:
“I have a friend who used her Solar Lights inside the house at night when the electric power went off during a hurricane. She stuck them in jars and bottles and said they gave off plenty of ‘free light’ in each room. She put them outside in the daytime and brought them back inside at night for several days while the power was off. They are safe to use and cheaper than batteries.”
I’m going to get some solar-powered path lights and try this out, especially given the fire hazard of using candles. Cool tip.