Absolutely stunning! I am well impressed I must say. I been following Black grouse's vegging under your lights and they are performing great so far in Veg.
Your new idea for multiple low watt panels is great. That would deffo have better coverage than e 50w COB. I am personally vegging in a 1.2x0.6 place and using 300w Prakasa with daily rotation of the plants to be able to get even light coverage on them as most light is just concentrated under the cobs.