Man I couldnt disagree more. If you're gonna get somethin on Amazon, go with Fissioning Boards 240R. It's an all 3500K Samsung LM301B with added 660&730nm Red Osram Diodes. The spread these boards lag down in unlike any other board I've seen period and I will vouch for them personally. Fantastic light.
Spider farmer as well as the Mars TS series fixtures have a 1:1 3000/5000K diode setup and it's just too much blue for flowering. I noticed quite a difference.
Amazon.com : Fissioning LED Grow Light Matrix 240W Full Spectrum with Samsung LM301H 3500K, Osram 660nm and 730nm, Meanwell Driver HLG-240H-54A, Dimmable : Garden & Outdoor
www.amazon.com
Check out the Par maps evenness for a single board at 120watts.
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Also what in the hell do you mean HLG is 7 yr old tech? LM301 chips are super new.