In Breath of the Wild, there are two "Tech Labs". Upon arriving, both give you a mini-quest to light the furnace outside the lab with a "blue flame".
Along the path, when carrying the lit torch, there are stone lanterns you can light with the blue flame (presumably as a "checkpoint" for when it may start to rain).
Do these lanterns serve any other purpose? I.e. will anything happen if I light them all, as some puzzles did in older Zelda games?
Best Answer
No, they do nothing once you light them, but they do stay lit forever in case you are near one and ever need to start a fire for some reason.
There is also a small mini-game involving lighting a blue torch and its easier if there happens to be a nearby torch that is already lit.