I don't know if anybody else has been looking at these for a way to keep a light in a car or something without having to worry if the battery will be dead the one time every couple years you need it. I have been looking at them and when Home Depot had an add in the local newspaper at 3 for $10 I picked up a couple packs. 30 seconds winding is supposed to give you 30 minutes of light. I did not check that out but they seem to work fine.
Jim
Jim
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