A light generating system comprising a plurality of first light sources, a plurality of second light sources, and optics, wherein: - the first light sources are configured to generate first light source light having in a first operational mode a first spectral power distribution, wherein the first light source light has at least intensity at a plurality of wavelengths in a first wavelength range of 380-780 nm; wherein the first light sources are configured in a first array having a first pitch; - the second light sources are configured to generate second light source light having in the first operational mode a second spectral power distribution differing from the first spectral power distribution, wherein the second light source light has at least intensity at one or more wavelengths in a second wavelength range of 470-490 nm; wherein the second light sources are configured in a second array having a second pitch; - the optics comprise a plurality of beam shaping elements configured to beam shape at least the first light source light; wherein the beam shaping elements are configured in a third array having a third pitch, and wherein the beam shaping elements have a first diameter; and - P 1 = P 3 and P 2 ≥ P 1; - wherein the light generating system is configured to provide in a first operational mode white first system light in a first direction and second system light in a second direction; - the first system light has a first ratio R1 of luminous flux in the second wavelength range relative to the luminous flux in the first wavelength range; and - the second system light has a second ratio R2 of luminous flux in the second wavelength range relative to the luminous flux in the first wavelength range; - wherein under a first angle (α1) relative to a normal N to the light generating system the first ratio R1 is selected from the range of 0.01-0.15, wherein under a second angle (α2) relative to the normal N to the light generating system the second ratio R2 is selected from the range of 0.2-15, wherein the ratio R2/R1 > 1, and wherein the second angle (α2) is larger than first angle (α1). - the first light sources are configured to generate first light source light having in a first operational mode a first spectral power distribution, wherein the first light source light has at least intensity at a plurality of wavelengths in a first wavelength range of 380-780 nm; wherein the first light sources are configured in a first array having a first pitch; - the second light sources are configured to generate second light source light having in the first operational mode a second spectral power distribution differing from the first spectral power distribution, wherein the second light source light has at least intensity at one or more wavelengths in a second wavelength range of 470-490 nm; wherein the second light sources are configured in a second array having a second pitch; - the optics comprise a plurality of beam shaping elements configured to beam shape at least the first light source light; wherein the beam shaping elements are configured in a third array having a third pitch, and wherein the beam shaping elements have a first diameter; and - P 1 = P 3 and P 2 ≥ P 1; - wherein the light generating system is configured to provide in a first operational mode white first system light in a first direction and second system light in a second direction; - the first system light has a first ratio R1 of luminous flux in the second wavelength range relative to the luminous flux in the first wavelength range; and - the second system light has a second ratio R2 of luminous flux in the second wavelength range relative to the luminous flux in the first wavelength range; - wherein under a first angle (α1) relative to a normal N to the light generating system the first ratio R1 is selected from the range of 0.01-0.15, wherein under a second angle (α2) relative to the normal N to the light generating system the second ratio R2 is selected from the range of 0.2-15, wherein the ratio R2/R1 > 1, and wherein the second angle (α2) is larger than first angle (α1).