Advice on COB - 4x4 grow

[john doe grower]

hi, growers!

1st time posting and 1st time grower here trying to get some advice on lightning.
Still a little bit confused on diy COB fixtures and especially insecure about what's "really" necessary to grow some plants (maybe 3-4 for that space?) and, yeah, I've read some good amount about it. But I also feel, regardless from reading, that I'll get more confident with some straight answers.

My grow will be whole diy. The initial idea is to build a closet grow (something like) with wood as the structure, 4x4 (1,20m x 1,20m approx).
I plan to grow 3-4 plants in that space (too little or too much?).

As for lightning... here comes most of the doubts.
I don't have that much money, that's why the idea of diy'ing everything (things are expensive here in my country).
With that in mind and trying to have a decent crop...
what would guys suggest for COB and drivers?

I initially thought on 4x Citizen CLU048-1212 GEN 6 90 CRI 2700K and 2x Citizen CLU048-1212 GEN 6 80 CRI 4000K.
Would that be decent? If so, what would be a good driver to pair with? I've read and found some calculator for that, but would like to check with you all anyway.


my most sincere thanks.

 

[bluter]

cob isn't that hard

it's good to real big if you go with it though

it's pretty simple if you run series. i run an even mix of 3000k and 3500k which is a flower bias but still does good for veg. i tossed 5050 smd burples in to the veg rig, they act as ramp up / down dawn / sunset running at the beginning and end of the day cycle.

cob is kinda old school, you should look into building a strip rig.

 

[Breedwheel]

2 HLG-185W-C1400B