"What is your 635 to 660 ratio?"

I have the 635s and the 660s on separate arrays.
I use 4 different arrays for different stages of growth.
This is my flowering light
Attachment 285655
Uses all 660nm. for the 10 reds and 2 15W blues.
There's plenty of headroom so dimming the reds can give me more than enough relative blue to control stretch
Attachment 285656
As you can see, I ran my first flowering with the red turned all the way up.
This is how I learn.
Try stuff, an' see what happens.
(Most folks just call it havin' fun.)


Want pics of the other units?
Jus' click on my avatar, then click the more button on my albums.
Got some in "Let there be light".

Aglowha

Weeze