Look at bulb spectra: https://www.researchgate.net/profile/Fawzia_Abdel-Rahman/publication/312320039/figure/fig1/AS:670209421623301@1536801786500/Emission-spect

Look at bulb spectra: https://www.researchgate.net/profile/Fawzia_Abdel-Rahman/publication/312320039/figure/fig1/AS:670209421623301@1536801786500/Emission-spectra-of-different-light-sources-a-incandescent-tungsten-light-bulb-b.png https://www.researchgate.net/profile/Fawzia_Abdel-Rahman/pub... Any reptile or bird owner can easily attest to the effectiveness of full spectrum light on a living being.