I should have also said to please give the setting you use, in the app. You can set it to several setting, like Source Type. There are dozens of light types, color spectrums and such. The original SF2000 and SF4000 have a 2 to 1 ratio of 3000k to 5000k diodes or a k color of 3500k LED w/ 660nm, so that’s what I chose. Easy peasy.