A light emitting device is provided. A light emitting device according to one embodiment comprises at least one main light emitting unit which comprises a light emitting diode chip and a wavelength converter and emits white light, wherein the light emitting diode chip comprises an ultraviolet ray chip, a violet color chip or a blue color chip, and can be controlled so as to emit light corresponding to a spectral power distribution of morning solar light, light corresponding to a spectral power distribution of daytime solar light, and light corresponding to a spectral power distribution of evening solar light.