Get 4 CXB3070 (AB or even better AD bin) from Kingbrite and MW HLG-185H-C1400 and hook all 4 COBs on the single driver. It'll be way more efficient and also cheaper. This way you'll also get optimal intensity (about AB@880µmol/s/m^2; AD@930µmol/s/m^2).
Thank you very much for the advice. Today I did order 4 CXB3070-0000-000N0HAD30G(3000K 30G AD) 80CRI and holders for it. And also will be ordered HLG-185H-C1400B, as you advised.
Do I understand, at the current 1,4A and serial connection they relative luminous flux value is around 85% and will be equal to 9.967x0.85x4=33.9k lumens?
And do I even ordered some lenses, for example, to protect the chips?