EP2402415

The invention concerns a light emitting device comprising a first light emitting portion comprising a first light emitting diode chip and a first phosphor, the first light emitting diode chip emitting blue or UV light, the first phosphor converting the blue or UV light into a longer wavelength light, the first light emitting portion emitting light with a first color temperature by combination of light emitted from the first light emitting diode chip and the wavelength-converted light by the first phosphor; and a second light emitting portion comprising a second light emitting diode chip and a second phosphor, the second light emitting diode chip emitting blue or UV light, the second phosphor converting the blue or UV light into a longer wavelength light, the second light emitting portion emitting light with a second color temperature by combination of light emitted from the second light emitting diode chip and the wavelength-converted light by the second phosphor, wherein the first color temperature is higher than the second color temperature, and wherein the first and second light emitting portions are driven independently.