those are geo lanturns (if thats what theyre actually called). you need to break some rocks, which should give you a floating rock that unlocks the mechanism once you get close to the "lanturn machines" with them. the rocks that you need to break are the black ones with a light emanating from the centre of the rock (they almost look like iron orn). theyre all nearby the mechanism area.
just wanted to say I found around 10+ at the statue of seven near the dawn winery, not labeled on this guide, in game, or any other guide I saw online. probably more than 9 if you look around a bit more