The trackable travelled with us around in thailand to bangkok, chiang mai (north thailand) and in the south on the island ko tao.
In chiang mai we were searching at night at the "sri phum corner" (gc4fpcm). Without the blue light we would not have found the cache :-D
Unfortunately this cache was wet inside. Because of that we didn't leave the tb overthere.
Now we dropped the cache at the island on the cache "get here if you can". The light would be helpful if somebody has to get down in the dark after visiting the cache :-)