He emailed back, still not answering my original basic questions.
DLI:
With 4 of our 315s in there, you have about 275 micromol/m2s.
That works fine for Veg, although 400 micromol/m2s is what we normally advise.
For flowering we always advise a lightlevel of about 800 micromol/m2s.
If you’d replace the 4 x 315’s by 4 x DLI LED’s you go up in lightlevel to about 350 micromol/m2s.
6 LED’s in that room would give you 525 micromol/m2s.
8 LED’s in that room would give you 715 micromol/m2s.
10 LED’s in that room would give you 875 micromol/m2s.
I hope this information helps.
Let me know if you have any questions