Question About Lumigrow Spectrum Adjustment knobs

So I have the Lumigrow ES330. It has a knob for blue spectrum & red spectrum.

Should I have the red & blue turned up all the way for Veg & Flower ? or Only blue for Veg and only red for flower, or something entirely different ???

Sehnsee it truly depends on how the plants react, right? In veg if they exhibit too much stretch then turn your red down/boost blue or vice versa if you do want more internodal space. You could try to run heavy blue during the initial stretch of flowering, then switch to a red heavy setting, then full blast to finish. At least I'd do that, but my panels are knob free . Good Luck and Happy Growing!