Nine 200w rigs compared to the same chilled watts apples to apples comparison easy to read I was quite fair and detailed. 200w cob rig costs min $500 no frames. 9 x $500 $4500. I hate doing opm other peoples math
So it seems you are joking... a 200W cob rig does not cost min $500, stop talking rubbish, it really makes it look like you are advertising other peoples products.
You can build a 200W cob build for under $300, not $500...
Are you using prices from CREE CXA from 3 years ago to try to save face?
Dont worry about doing any maths for me, its crystal clear that you cant even do it for yourself, let alone other people.
I cant be bothered to get the lowest prices here to prove my point, but I dont need to as your builds so overpriced it doesnt matter.
Heres an overpriced 200W COB build coming at still under $300, not the $500 like you said.
4 x Citizen 1212 = $55,
HLG driver = $65,
4 heatsinks = $100
Bits and bobs(screws, frame, wire) = $50
Total = $270.
Still under my $300 estimate.
And if you wanted to could probably get the build for under $200 if you shopped around.