I found one of these weird light tubes as well. And after some testing, it actually seems to be an unexploded "tree grenade" if you have ever heard of those. Turns out they are actually explosive light tubes
oh it's one of those? huh i had no idea, i always wondered what the red light was about before the explosion still no idea how it ended up near the bridge for me though, did the same happen for you too?
It was by the base of a tree near the base, no idea how it didn't explode. though I noticed I was getting an unusual amount of intact tree light tubes at the time so it is definitely related to that
