Hi
@FortuneSeeker, how you be? Par for autos? I guess you’re asking my ppfd numbers (vs DLI or some other measuring form)?
I don’t use different numbers for autos and photos, it’s the same thing. Generally speaking, if I had to break it down to steps, here’s about what my chart would look like:
Seedlings to two sets of actual leaves: 400-600
Two sets to the end of veg: gradually increase from wherever you are to try to get to about 800-900 by the flip.
Flower: I stay around 900 until I have actual buds and then go up gradually as high as possible given the strain. I’ve been as high as 1350 and as low as 900. At that point, imho, you see the strain specific light response real well and can read it. I generally use the numbers as well as the prayer angles and the bleaching/stretching to sort of visually check my numbers. My goal is to read the plants well enough to not need a measuring device eventually.
Does that answer your question and help?