CPC H01L 33/504 (2013.01) [C09K 11/02 (2013.01); C09K 11/617 (2013.01); C09K 11/77342 (2021.01); C09K 11/77348 (2021.01); H01L 25/0753 (2013.01)] | 22 Claims |
1. A lighting device comprising:
a first LED having a wavelength of maximum intensity from 620 nm to 640 nm;
a second LED having a wavelength of maximum intensity from 500 nm to 565 nm;
a third LED having a wavelength of maximum intensity from 430 nm to 480 nm; and
a fourth LED for generating light comprising a CCT in a range from 1800K to 5000K;
wherein the first LED comprises a phosphor-converted LED comprising a narrowband red phosphor with a FWHM less than 55 nm, and a broadband red phosphor.
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