Limo's CXB3590 build

PotHead3

Well-Known Member
I see, each 4x4 will have 9 cobs in a 3x3. That's 450watts of LED per light at 1400ma. So one hlg185 will run 4 of those and and hlg240 will run 5 cobs at 1400ma. The combo of the 2 drivers will give you your 9 cob grid, but it ain't no 650w.
i thought the cxb3590 can pull 75w each? i basically want a 1000w hps replacement. what would be a good setup i like the 3x3 or i can do 4x4 but prices go way up as i need 7 additional heatsinks with a 4x4 cob set up. im trying to go price out whats good pricing on making a cob setup spaced evenly.
 

Growmau5

Well-Known Member
i thought the cxb3590 can pull 75w each? i basically want a 1000w hps replacement. what would be a good setup i like the 3x3 or i can do 4x4 but prices go way up as i need 7 additional heatsinks with a 4x4 cob set up. im trying to go price out whats good pricing on making a cob setup spaced evenly.
they can if you run them at 1750ma on hlg240h-c1750 but then you can only run 4 per
 

PotHead3

Well-Known Member
they can if you run them at 1750ma on hlg240h-c1750 but then you can only run 4 per
i just kinda got it now. i think i can use 9 drivers for 36 cobs if its 4 each driver, the each 9x9 will overlap to the next one to utilize 9 drivers to the max. is that correct to say?

growmau5 i saw your youtube vids. lots of great info. i havent digested it yet
 

Keesje

Well-Known Member
If you can afford it:
(16) cxb 3590 3500K CD 36v run on (2) MW HLG185h-c700 // (4) 5.886" x 36-38" Long heatsinks. would be pretty legit for a 4x4 tent.
Hi Growmau5,
You said that the above set up would be nice for a 4 x 4 room.
If I am correct it would mean that the total Wattage would be (16 x 36 V) x 0.700 A = 403 Watts. (theoreticallly)

If you would use the same amount of CXB3590's (16) but you would use (4) HLG185h-c1400, the total Wattage would be (16 x 36 V) x 1.4 A = 806 Watts.
Hope my assumptions and calculations are correct.

Wouldn't that mean that you would have a better yield?

(I know the bill for electricity would be higher, but that aside. Also I am aware that the COB's would run less efficient)

Thanks for all the great help.
And Limosnero: Great report here!
 

ttystikk

Well-Known Member
@Keesje I'm currently running modules comprised of that same driver, running 4 CXB3590 36V chips. Because mine is the B version of that Meanwell unit, it will output 8% more than its rating, meaning the chips actually see 54W apiece for 216W, plus 8W for the driver and I get 225W from the wall.

This combo delivers a very respectable 824PPfD across 6 square feet, so just two of them would provide almost 700PPfD to a 4x4.

Doubling that would almost be too much.
 

PotHead3

Well-Known Member
I see, each 4x4 will have 9 cobs in a 3x3. That's 450watts of LED per light at 1400ma. So one hlg185 will run 4 of those and and hlg240 will run 5 cobs at 1400ma. The combo of the 2 drivers will give you your 9 cob grid, but it ain't no 650w.
i thought cxb3590 was 150w cobs that should be ran at 50% = 75watts x 9 = 675? anyway how would running 450 watts in a 4x4 area be? will it equal a 1000 watt in terms of being enough light?
 

Airwalker16

Well-Known Member
i thought cxb3590 was 150w cobs that should be ran at 50% = 75watts x 9 = 675? anyway how would running 450 watts in a 4x4 area be? will it equal a 1000 watt in terms of being enough light?
The lower the amperage, the higher the efficiency. I personally run mine at 64watts. Wish I'd built my light when the HLG320's were available though cause I wouldve gone to 75watts on a 2100mA driver.
But my 500 watts in a 4x4 killed it.
 

bassman999

Well-Known Member
They could run up to 150 watts each,but the lower you run them the more efficient.
I run mine at 32 watts each, and run 12 in a 2x4 tent @376 watts at wall, but thats while dimmed and can turn it up to about 470 watts on (2) HLG240's
 
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