A light-emitting diode includes at least two light emitting cells disposed on a substrate and spaced apart from each other, wherein each of the at least two light emitting cells includes a first conductivity-type semiconductor layer, an active layer, and a second conductivity-type semiconductor layer. Each of the at least two light emitting cells includes a cathode disposed on the first conductivity-type semiconductor layer, an anode disposed on the second conductivity-type semiconductor layer, and the cathode of a first light emitting cell of the at least two light emitting cells is electrically connected in series to the anode of a second light emitting cell of the at least two light emitting cells adjacent to the first light emitting cell by an interconnecting section.