Thanks. Validates my thinking. 33% increase in LED cost for a 7-8% gain isn't worth it.At 1.4 amps it would be about 7-8% more output. It would certainly pay for itself, just a matter of whether you want to spend the cash up front or not.
Ooohhhhh... Things just got a lot better.3500k 3590s at 66.09 rated up to 18000 lumens each, so 2 would be $132 and 36000 lumens, Spend the same amount on 2530s for 13.25 rated at 8000 lumens, so for the same price you could run 10 of these chips for a total of 80000 lumens.... Seems like a no brainer, I ordered 20 of them! These are max values, so real live output will be less, but the logic still applies. Also you could run all 10 from a single driver in 2 5 cob strings @ 700mA, make them dimmable and if you loose a cob/string, the other string still wont be over driven and in danger of frying.
I'm guessing you're talking about these CXB2530-0000-000N0UT230H COBS at $15 each? http://www.cutter.com.au/proddetail.php?prod=cut2827
Would I need an HLG-185H-C1400B or HLG-120C-1050B to drive 10 of the 2530s, or a completely different driver all together?
Thanks everyone.