6-cxa3590 How many lumens?

Hi, I am constructiing a light with 6 CXA3590. I will be running with at 1.2a individual drivers. 3 are 2700k and 3 are 3000k. What kind of lumens should I be expecting from theis configuration?
Thankyou

onehandedroller said:

Hi, I am constructiing a light with 6 CXA3590. I will be running with at 1.2a individual drivers. 3 are 2700k and 3 are 3000k. What kind of lumens should I be expecting from theis configuration?
Thankyou

Click to expand...

lumens are irrelevant

This information taken from SupraSPL's thread may be of some interest to you. using better metrics than lumens to anticipate what you can expect from your setup:

https://www.rollitup.org/t/cxb3590-1500w.878136/page-2#post-11775567

@61.2%
(5) CXB3590 3500K CD 36V @ 1.05A (35.5W ea) $237.50
(1) HLG-185H-C1050 $65
177.5 dissipation W -> 68.9W heat ->
passive cooled heatsink 8268cm² -> 4.9"X36" $70
or
active cooled heatsink 2756cm² -> 3.5"X36" heatsink (for spread) $45 + 80mm fan + psu $10
(5) lenses $20
108.63 PAR W covering 6ft² =
$392.50 = $3.61/PAR W passive cooled
$377.50 = $3.48/PAR W active cooled

I have read, and maybe I do not understand enough. I am trying to equal or come close to my 600whps and replace it. Am I in the right ballpark?
Thank you for your patience

rough calculations :: (6) cxa3590 (assuming 36v model) @ 1.2a = ~50watts ea x 6 = 300w / 16 sqft = 18.75w/sqft assuming 4x4 grow area.

I don't know what BIN cobs you have, your grow space or the efficiency of 2700 or 3000k [email protected]

Based on my own anecdotal evidence, this 6 cxa3590 is NOT a 600w replacement. more like a 450-500 hps to put it into relative terms.

Bonjour
Growmau! He talk about CSA and we do not know the bin so your answer mean nothing...sorry!
So what is your cxa bin?
Why old cxa?
Hat is the size of your grow box? If it is 4x4 you will need between 25 and 30w sq/ft,so between 400 and 475w so 8 to 10 cob.9 would be perfect IMO.
Have a great day™

Soups sorry...I was writing while you posted...

@littlejacob lol, no worries. Like many OPs they dont give us enough or the right information to try to help them ...

Hi and let me apologize for my ignorance. It is the wealth of knowledge available here that I rely on.
Grow room is 4x4. I aqquired the COB's from someone else who decided not to try them. I actually have 4 3000k.
the information I have on the 3000k:
Diameter: 34.85 x 34.85MM
Viewing Angle: 115°
Emitting Color: WarmWhite
Lumen min.: 10000
Lumen max.: 18000
Kelvin : 3000K
Max Current:1.8A
Typical Forward Voltage @ 1.2 A (V), 85 degrees C: 77 V
Reverse Current: 0.1 mA
Max Power: 150W
On the 2700k:
941-CXA35900R00AD27F
CXA3590-0000-000R00AD27F
WHITE, 9000lm

For drivers I have 7 -
LED driver transformer for cree cxa3590 LED bulbs
Colour: silver
Material: Aluminum
Output Power: 100W
Input: 85-265V
Output: DC 77V
Dimension: 160 x 70 x 45 mm
output current:1200ma
waterproof:IP68

I also have 3 -
709-HVGC-150-1050A
HVGC-150-1050A
150.1W 1050mA15-143V

Does this help?
Thank you So much

This helps a ton @onehandedroller .
grow space 4x4 = 16 sqft
CXA 3590 77v //max current 1.8a// (not 3.6a like the 38v version)

Running these babies at 1.2 a is driving them @ 67% of their max current. at a wattage of around 100w ea. Your efficiency will not be ground breaking here. But 6 of these at 100w each will be the same 600w dissipation at the wall as your 600w HPS. And will certainly blow the HPS out of the water in terms of PPFD.

HVGC's don't dim, i think you will find a lot of value in using a dimmable driver for this application , especially if you become height limited in the tent. Or, u can just unplug a couple drivers to reduce lighting intensity. This setup has the potential to burn plants in veg and early flowering if it is hung too close to the canopy.

What are your plans for heatsinks? cpu coolers or traditional extruded bars from heatsink usa.

Hello and Thank you!
I have ordered 3 each 7.280" Wide Extruded Aluminum Heatsink at 21"
I was thinking each should be good for 3 cob's? I have fans I can mount to each.
Can I run 2 Cobs at 1050a on the HVGC 150v?
I will try and wire up all 7 Cobs.

I will be running this setup strictly for flower. I usually under-utilize my space. I tend to keep things under 4ft so I have plenty of height.

Can you explain PPFD to me?
Drivers are fairly expensive so If I can use these now I am going to but I love upgrading, do you have recommendations?

Thank you again

- 7.28" profile x 21" long will passively cool 166w , since you will be running 175w per bar(if run at 1050mA instead of 1200mA), you could add a 140mm fan run at 5v on a meanwell apv12-5 (one will run all 3 fans easily) or you could size up the heatsinks by an inch or two & stay passive.

- Meanwell HVGC-150-1050A - 143v output should in theory run two cobs and be a very efficient use of that driver.

PPF (Photosynthetic Photon Flux) issued by (or should be) manufactures as the lamps total emitted number of
photons per second in the PAR region. Units of measure: μMol/S
PPFD (Photosynthetic Photon Flux Density) represents a field measurement and is defined as, the number of
photons in the PAR region emitted per M2 per Second. Units of measure: μMol/M2S

Hello Again,
I read a lot about efficiency and am not sure I understand the goals.
Do we run these at lower current to save their life spans?
Is it so we produce less heat?
Does the output drop at lower current significantly where I would want more cobs if I ran say at .7A ?
Are there drivers available to drive say 4 of these at a time at a higher output than .5a?

Thank you again

One COB at 100 watts will produce less light than 4 COBs @ 25 watts each.

Ok, I have enough drivers to either run 6 cobs @ 1050 and 1 @ 1200 OR 4 cobs @ 1200 and 3 @ 1050. Which would be better output wise?
My goal is to be roughly equivlent to a 600w HPS.

Thank you

I personally guarantee you that either configuration will blow away a 600w HPS.

Config #1 - (6) cxa3590(77v)@1050mA = (87.5w x 6) = 525w + 100w (1@1200mA) = 625w this is your highest efficiency option. 4 drivers needed

Config #2 - (4) cxa3590(77v)@1200mA = (100w x 4) = 400w + 263w (3@1050mA) = 663w this might be slightly higher total output. 6 drivers needed

I would probably go with #1 it is a better use of the (3) Meanwell HVGC-150-1050A drivers. and requires less wiring and total amount of the drivers you have on hand. since your 1200mA drivers are for single COBs.

Good Morning,
I have aquired some more parts!!
I now have 3 more cxa3590 2700 , 2 each HLG-185H-C700A and another heatsink measuring 26"x12".
Can someone help with the calculations?
I would like to put 8 or more 3590's on the 12" heatsink . I think the HLG-185H-C700A will run 4 @ 700ma.
Can I run this passively or need fan with this configuration? I will also run 1 or 2 more 3590's @ 1200ma to bring the output as close as I can to and or over about the equivlent or a 600whps. How many will I need to run with the 8x configuration?

Thank you again for the help...

Growmau5 said:

I personally guarantee you that either configuration will blow away a 600w HPS.

Config #1 - (6) cxa3590(77v)@1050mA = (87.5w x 6) = 525w + 100w (1@1200mA) = 625w this is your highest efficiency option. 4 drivers needed

Config #2 - (4) cxa3590(77v)@1200mA = (100w x 4) = 400w + 263w (3@1050mA) = 663w this might be slightly higher total output. 6 drivers needed

I would probably go with #1 it is a better use of the (3) Meanwell HVGC-150-1050A drivers. and requires less wiring and total amount of the drivers you have on hand. since your 1200mA drivers are for single COBs.

Click to expand...

Bonjour
Could you tell us how much you paid for the cxa 2700k and what bin they are please!
Have a great day ★

Good Morning,
they are part number CXA3590-0000-000R00AD27F from mouser electronics and prices 61.81 each

Bonjour
Cxb 3590 3500k 36V CD are 50 $ in kb...
Cheaper,more efficient, new model...cxb are more everything...so why did you buy those????
Have a great day ★