I bought a new watch today and they were giving away inflatable lanterns with them. It is kind of neat, solar powered, 12 hour battery life per charge, and good for about 300 charges. Their website says they will last from 2 to 10 years depending on often you use them.
It weighs next to nothing and hangs from a cord or wire or whatever. Three modes: dim, bright, blinking. Here is a link to their website.
www.mpowerd.com/luci-user-manual.
This the light inflated and on dim.

This is the solar end and the strap to hang it up with. The round dot is the switch.
