We have created light spectra for driving both plants leaf growth and flowering, which is desirable in many applications where plants should flower (quickly) and we have a light spectra which drives plants to use all energy to develop leaves while delaying flowering.
Not that difficult to do .....
Neutral Whites vs Warm Whites ....
1) Valoya AP67 – General Growth Spectrum
...Appearance to humans: Pinkish light
2) Valoya AP673 – Growth Spectrum for Leafy Green Vegetables
Appearance to humans: Peach-tone
3) NS2 – Compactness. Full Spectrum White
Appearance to humans: White.
4) AP67S ARCH – Architectural Applications
Appearance to humans: Warm white. Note: This is not a common ‘warm white’ spectrum used in commercially available LED lights. It is a spectrum strongly related to the original AP67, thus very efficient in plant growth, yet human eye friendly.
Approx, same (available ) light colors ,already in my grow tent,right now .