Hello Alohamahlo,

You are really in good hands with Weezard, he will not steer you wrong.

DreadedHermie, who's humor I much miss, used to recommend Meanwell LED drivers. I've used thier product line to spec out DIY lights and they seem to cover most needs.

I realize that you are looiking to use the far red as trigger lights, great idea.
You will probably be able to run them thru out the photoperiod, the ratio is physically 2:1, light output wise closer to 3.5:1. The most important part of using the far red as a trigger, is for that far red be the last light seen by the plant and again the first light seen.

Hopefully with this bump, maybe Knna will see this and chime in. :thumbsup:

Good luck with the build, hope you post pictures.
OM