This is a nice cheap made in China mini Solar Flashlight. Ideal to use as a backup lamp or Survival Kit lamp but the problem is if you are outdoor, this lamp would need to be exposed to sunlight in order to charge the internal battery. I once encounter an incident during river crossing and dropped it into the water, immediately the flashlight did not work.
In order to allow this mini solar flashlight expose to the outdoor elements, I decided to embark a simple project to make it water resistance and also to glow in the dark when the flashlight goes missing.
Permatex Silicon Gasket is normally used on engine parts, here I use it for making gasket around the flashlight
the hardest sealing area are the LED housing, had to seal the outside as well
Water test and it still works
Night Glow on both side of the flashlight