These have been around for many years now. Cheap, simple, reliable and tough as nails. For three bucks or so for the pack of ten they are a great deal. In my experience they last well over ten hours. They do start to dim down but a day later you still may have some light left.
Leegoal 10 X Led Mini Micro Black Keychain Key Ring Super Flash Bright Flashlight White Light $3.30For $0.33 a pop you can’t beat these for budget EDC or keeping in different kits, keychains and bags.
Fernando “FerFAL” Aguirre is the author of “The Modern Survival Manual: Surviving the Economic Collapse” and “Bugging Out and Relocating: When Staying is not an Option”.