A light emitting device is provided that includes a light emitting structure including a first conductive semiconductor layer, an active layer on the first conductive semiconductor layer, a second conductive semiconductor layer on the active layer, a superlattice structure layer on the second conductive semiconductor layer, and a third conductive semiconductor layer on the superlattice structure layer; a light transmission electrode layer on the light emitting structure; a first electrode connected to the first conductive semiconductor layer; a second electrode electrically connected to the light transmission electrode layer on the light emitting structure; and an insulating layer that extends from a lower portion of the second electrode to an upper portion of the second conductive semiconductor layer.