There is a thread in LED forum about a solar powered light called a "Solar Forever Light"
Well I did a google search on "Forever Light" and came up with this interesting little light. Aparently it has some type of battery in it that has a shelf life of 25 years, but must be activated with water. From the examples they give I think the water needs to contain salt...sad thing about the light is sure it's got that, uhh, interesting battery system but the beam is probably terrible!
Pee on me Forever Light
Well I did a google search on "Forever Light" and came up with this interesting little light. Aparently it has some type of battery in it that has a shelf life of 25 years, but must be activated with water. From the examples they give I think the water needs to contain salt...sad thing about the light is sure it's got that, uhh, interesting battery system but the beam is probably terrible!
Pee on me Forever Light