see4
Well-Known Member
A diode produces a specific light spectrum, two diodes of different spectrums do not make an average spectrum. A 3000k spectrum diode produces wavelengths beneficial to plants not found in 4000k and 3500k spectrums.Mixing CCT's is a fools game, TBH. You simply end up with an average of the two CCT's - in this instance, 3500K which is a readily available color temp. Stephen from HLG has posted some spectrometer measurements that showed this. The only time it makes sense is if you want to turn off the lower CCT diodes for Veg and then add them in during flower
https://plantmethods.biomedcentral.com/articles/10.1186/1746-4811-8-46