CLW user here! 3 SS 550s & 4 UVB in a 4x8. If one is dedicated to PPFD/DLI when adjusting intensity then CLW lights might not be for you.
In a multi light setup hanging height lands up being in an arc because of footprint when ppfd is measured. Also big drop in ppfd back/front vs side. So my personal observation an even PAR coverage with my light model is not achievable.
CLW's Controller allows individual red, white (green) and blue in increments from 1-99%. The mfg provides recommendations for hanging height and light settings each stage of growth. You can program the entire Grow "sprout to finish" and add transitions. Also there is a dawn/dusk feature to ramp lights up and down.
CLW is spendy but that's what PayPal is for.
Only issue UVB fixtures are China. They sold out there!
CLWs recommended settings are intense once you place a PAR meter under them. Finally I settled for measuring dead center at plant height. Under these lights I have had six successful harvests. The seventh I followed the "science" and performed under par.
Conclusion: I reverted back to original cultivation settings, tend the garden more and don't figit with the science.