I have a question :
Do you think is really true the value of wavelenght from led that we use it ???
the manufactory writen 660nm but some what I've got is doesnt really 660nm,
experiment that I use for red 660nm is not powerfull as warm white in my new setup ATS.
I use 15x1watt red 660nm and compare with warm white 15x1watt 3200k.
warm white more stronger to make it grow..