Color-temperature-tunable lighting devices

A lighting device comprising:

• a first LED for generating light of a first chromaticity in a first chromaticity region defined by chromaticity coordinates (0.495, 0.384), (0.501, 0.363), (0.529, 0.388), and (0.522, 0.409);
• a second LED for generating light of a second chromaticity in a second chromaticity region defined by chromaticity coordinates (0.430, 0.457), (0.433, 0.426), (0.455, 0.449), and (0.452, 0.479);
• and
• a third LED for generating light of a third chromaticity in a third chromaticity region defined by chromaticity coordinates (0.270, 0.310), (0.274, 0.297), (0.281, 0.308), and (0.278, 0.321);
• and
• wherein at least one of the first, second, or third LEDs comprises an LED chip for generating blue light having a FWHM of about 30 nm to about 80 nm.

A lighting device comprising:

• a first LED for generating light of a first chromaticity in a first chromaticity region defined by chromaticity coordinates (0.539, 0.396), (0.545, 0.374), (0.572, 0.399), and (0.567, 0.421);
• a second LED for generating light of a second chromaticity in a second chromaticity region defined by chromaticity coordinates (0.445, 0.503), (0.448, 0.473), (0.470, 0.496), and (0.467, 0.526);
• and
• a third LED for generating light of a third chromaticity in a third chromaticity region defined by chromaticity coordinates (0.207, 0.275), (0.210, 0.240), (0.230, 0.254), and (0.227, 0.289);
• and
• wherein at least one of the first, second, or third LEDs comprises a narrowband red phosphor selected from the group consisting of:
• K2SiF6:Mn4+, K2GeF6:Mn4+, and K2TiF6:Mn4+.