Warm white led spectrum especially for retail applications

Abstract

The invention provides a lighting device () configured to provide lighting device light (), the lighting device () comprising a solid state light source () configured to provide blue light () having a peak wavelength (λ) selected from the range of 430-455 nm, a first luminescent material () configured to convert part of the blue light () into first luminescent material light () and a second luminescent material () configured to convert part of one or more of the blue light () and the first luminescent material light () into second luminescent material light (), wherein the solid state light source (), the first luminescent material (), and the second luminescent material () are selected to provide at a first setting of the lighting device () white lighting device light () having a CRI of at least 90, a Rvalue of at least 70, and a Rvalue of at maximum 465 nm, wherein the Rvalue is defined as a first wavelength (λ) in a spectral distribution of the white lighting device light () at the first setting, wherein the first wavelength (λ) is a wavelength closest to the peak wavelength (λ) but at a longer wavelength than the peak wavelength (λ) of the blue light () where the peak intensity (I) is 50% of the intensity (I) at the peak wavelength (λ).