Direct red LED for white light with high user preference

A light generating system comprising one or more primary solid state light sources, one or more secondary solid state light sources, a first luminescent material arrangement, a second luminescent material arrangement, and a control system, wherein:

• the one or more primary solid state light sources are configured to generate primary light having a peak primary wavelength (λp1) in the wavelength range of 430-490 nm;
• the one or more secondary solid state light sources are configured to generate secondary light having a dominant secondary wavelength (λd3) in the wavelength range of 610-630 nm;
• the first luminescent material arrangement is configured in a light receiving relationship with at least one primary solid state light source and is configured to convert at least part of the primary light of the at least one primary solid state light source into first luminescent material arrangement light;
• wherein when the at least one primary solid state light source alone irradiates the first luminescent material arrangement a first spectral power distribution, comprising the primary light and the first luminescent material arrangement light, is obtained;
• the second luminescent material arrangement is configured in a light receiving relationship with at least one primary solid state light source and is configured to convert at least part of the primary light into second luminescent material arrangement light;
• wherein when the at least one primary solid state light source alone irradiates the second luminescent material arrangement a second spectral power distribution, comprising the primary light and the second luminescent material arrangement light, is obtained;
• the first spectral power distribution and the second spectral power distribution have v′ values differing at least 0.02;
• wherein the first spectral power distribution has a first color point outside 10 standard deviation of color matching (SDCM) from the black body locus, and wherein the second spectral power distribution has a second color point outside 10 standard deviation of color matching (SDCM) from the black body locus;
• the light generating system is configured to generate system light;
• and
• the control system is configured to control the system light, such that:
• in a first operational mode of the light generating system first white system light is provided, having a first correlated color temperature CCT1, wherein the first white system light comprises a spectral power distribution comprising the primary light, the first luminescent material arrangement light, and the secondary light;
• in a second operational mode of the light generating system second white system light is provided, having a second correlated color temperature CCT2, wherein the second white system light comprises a spectral power distribution comprising the primary light, the second luminescent material arrangement light, and the secondary light;
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