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?