suitable led fixture for my tent

So ive got a 120cmx120cmx200cm grow tent, Cooled by a 6" fan and 1 computer fan to circulate air.
I plan to grow a max of 6 plants innit and was just wondering if this would be sufficient or i should go bigger.|
https://horticulturelightinggroup.com/collections/all/products/320w-xl-qb-led-kit
Obviously bigger is better but I have no experience with these new style of lights and want to know if 320w will pull out a deecent yield.
max I would probably wanna go is 600w but cost is up there
have been looking at quiet a few quantum board grows and they seem to pull out pretty good gpw

ready to buy I just thought I'd post up and hear from more experienced people.
And with that kit its all ready to be put together and go or am I missing something
thanks in advance

That light is powerful enough but it's not shaped properly for your tent. You might want to check out 3 of the boards on their own slate heatsinks so you can mount them in a more appropriate manner. Timber sells the kit seen HERE
Or better yet, 2 of the 240w versions.

Also, you'd need to mount and wire the kit from HLG yourself. The kit from Timber is prewired, all you need to do is hang them however you want.

4x4 is 16 square feet, 320/16 = 20w per square foot.
I think it's just enough, but you might end up wishing you had that 600?

Haha aye ill have a look at timber, I'm in NZ so hoping one of them will ship to nz and not cost me my left testy.

I've had previous experience growing with HPS main reason I wanna get away from it is heat but also light efficiency and all of that good stuff.

I'm algoods on a soldering iron so its not to big a problem.
Are the HLG ones pretty reliable in your peeps experience