Best way to utilise 9 cxbs

Just after some advice from people that already use cxb 3590s @1400ma. 3000k
I have 9, set on 3 bars with 3 120h drivers and just wondering how best to use them.
I have Angelena reflectors and 1-inch centres on the cobs.
I'm getting it all straight so I don't fry little ones when I start new beans.

I have A type drivers so can dim independently. Full pelt takes around 500w from the wall maybe a little more iv not checked at full yet.

So, should I run at full wattage and just raise the light or should I dim and remove reflectors and what sort of her guts are people keeping them at with and without reflectors?

I grow in a 1m2 tray in a 1.2m2 tent so have reflective walls. Although I'm thinking of downsizing to a 1m2 tent. Just can't decide.

And I grow autoflowers.

How do you use yours?

Thanks guys

Ok, lets start with what I hope is a typo. How far apart are your COBs?

For seedlings I would dim. Until the plants canopy outgrows the reflectors area I would keep them on.

put some weed under them

Haha currently finishing up 4 with them but not the same as starting from seed

They were started under hps then transitioned to the leds but hit a deficiency and lots of leaf curl at 300w @ 20inchs lol they didn't take it to well.

Iv got the new mephisto genetics fire to go under them so don't want to lose them straight off