The Flashlight lights up the surrounding areas. It is generally more convenient than the other two items, as you can use the flashlight whilst running. Compare this to the lighter, where it will extinguish while running.
However, despite how useful this item may seem, it can also be impractical at times. For example, sometimes you can't see an item because of the bright light from the flashlight. Because of this, some people will actually use the lighter more.