The question whether you want to grow in soil or hydro is not really depending on the type of light you use, IMHO.
By the way I am also using 4x CXB3590 right now.
I grew in soil last summer and I just got SOO tired of the many issues I think I had with soil, starting with bugs, the potential to choke your roots from over-watering (peat based soil holds water A VERY long time etc..) so I now choose to go Hydro simply because I heard so many good things about Hydro.
I chose Hempy buckets for various reasons, it's brain dead simple. No worrying about a tank or anything. To me it "feels" not much different than with soil, eg. watering so I think that Hempies would be good for someone who wants to make the switch. (Right now I am growing 3:1 Perlite/Vermiculite mix). (Still a bunch of plants in soil in my greenhouse but I will move them up on the roof, probably today even seeing that weather currently finally seems to get warmer). Goal is to make my entire greenhouse soil free
Still have a bigass bag of 125L Coco as well, but I think I wasted my money since overall there seems issues with Coco, in particular that it needs additional CalMag when you feed. I don't like the idea, I don't like to start out with something which needs to be tweaked first to have it right. Itself not a problem, but right now I don't see a reason not to use 3:1 perlite/Vermi, seems to work well.