I like this idea, but it probably would be better if, when holding a torch in your hand, it already casts light out so you could essentially explore a cave without placing torches down. It would be difficult to get back, but it'd be one less thing to worry about wasting if you have no chance of going back there...
i kinda dont like the lightin torch thingy
placin torches will get less exiting
ya know the feeling when you light up the ore zone!
this lantern idea fits since you need a little tech to run.