A light emitting diode including a first light emitting cell and a second light emitting cell separated from each other on a substrate, a first transparent electrode layer electrically connected to the first light emitting cell, an interconnection electrically connecting the first light emitting cell to the second light emitting cell, and a first insulation layer. The first transparent electrode layer is disposed on an upper surface of the first light emitting cell and partially covers a side surface of the first light emitting cell. The first insulation layer separates the first transparent electrode layer from the side surface of the first light emitting cell, and includes an opening to expose a lower semiconductor layer of the first light emitting cell.