A light emitting device comprising: a base; a first light emitting group disposed on the base; and a second light emitting group disposed on the base, wherein each of the first light emitting group and the second light emitting group comprises a plurality of light emitting units, each unit including a light emitting diode chip, wherein the first light emitting group emits light having a color temperature different from that of light emitted from the second light emitting group, the device further comprising: a third light emitting group disposed on the base; and a fourth light emitting group disposed on the base, wherein each of the third light emitting group and the fourth light emitting group comprises a plurality of light emitting diode chips, wherein the third light emitting group emits light having a color temperature different from that of light emitted from the fourth light emitting group, wherein the second light emitting group and the third light emitting group are disposed between the first light emitting group and the fourth light emitting group, and wherein the third light emitting group is disposed between the second light emitting group and the fourth light emitting group; wherein the first light emitting group emits light having the same color temperature as that of the third light emitting group, and wherein the second light emitting group emits light having the same color temperature as that of the fourth light emitting group; characterized in that the plurality of light emitting units in one of the light emitting groups (L1, L2, L3, L4) comprises two or more kinds of light emitting units alternately arranged on the base a base; a first light emitting group disposed on the base; and a second light emitting group disposed on the base, wherein each of the first light emitting group and the second light emitting group comprises a plurality of light emitting units, each unit including a light emitting diode chip, wherein the first light emitting group emits light having a color temperature different from that of light emitted from the second light emitting group, the device further comprising: a third light emitting group disposed on the base; and a fourth light emitting group disposed on the base, wherein each of the third light emitting group and the fourth light emitting group comprises a plurality of light emitting diode chips, wherein the third light emitting group emits light having a color temperature different from that of light emitted from the fourth light emitting group, wherein the second light emitting group and the third light emitting group are disposed between the first light emitting group and the fourth light emitting group, and wherein the third light emitting group is disposed between the second light emitting group and the fourth light emitting group; wherein the first light emitting group emits light having the same color temperature as that of the third light emitting group, and wherein the second light emitting group emits light having the same color temperature as that of the fourth light emitting group; characterized in that the plurality of light emitting units in one of the light emitting groups (L1, L2, L3, L4) comprises two or more kinds of light emitting units alternately arranged on the base a third light emitting group disposed on the base; and a fourth light emitting group disposed on the base, wherein each of the third light emitting group and the fourth light emitting group comprises a plurality of light emitting diode chips, wherein the third light emitting group emits light having a color temperature different from that of light emitted from the fourth light emitting group, wherein the second light emitting group and the third light emitting group are disposed between the first light emitting group and the fourth light emitting group, and wherein the third light emitting group is disposed between the second light emitting group and the fourth light emitting group; wherein the first light emitting group emits light having the same color temperature as that of the third light emitting group, and wherein the second light emitting group emits light having the same color temperature as that of the fourth light emitting group; characterized in that the plurality of light emitting units in one of the light emitting groups (L1, L2, L3, L4) comprises two or more kinds of light emitting units alternately arranged on the base