• Here is a link to the full explanation: https://rollitup.org/t/welcome-back-did-you-try-turning-it-off-and-on-again.1104810/

CXB3590 1500W

Growmau5

Growmau5

Well-Known Member
@WwW1962 You know xml-2 maxes out at 3000mA right? running them at 750mA will be fine for clones or nursery purposes, but if you are looking for the option to crank this baby up and do some real vegging you may want to consider a driver that can run them at 1400-1750mA. just my UN-solicited 0.02c (LPC60-1750 could run the 10 in the middle, not dimmable tho)
 
SaltyNuts

SaltyNuts

Well-Known Member
@WwW1962 How hard do you drive them and what efficiency and heat issues are you seeing with these XM-L2 modules? Does anyone know the "sweet spot"?

I'm curious about these smaller chips as an alternative to cobs, and anyone's experience setting them up and running them. Do I understand correctly that they run efficiently at relatively high temps?

WwW1962 said:
Cree XM-L2 U2-4C 1100LM 4300-4500K LED Emitter on 20mm Base Board10W / 3.5-3.7V / 2-3Aand
this driver https://www.fasttech.com/products/1612/10002422/1178000
from your tchfrmer thread..
thank you very much for the time guys
WwW
Click to expand...
 
WwW1962

WwW1962

Well-Known Member
SaltyNuts said:
@WwW1962 How hard do you drive them and what efficiency and heat issues are you seeing with these XM-L2 modules? Does anyone know the "sweet spot"?

I'm curious about these smaller chips as an alternative to cobs, and anyone's experience setting them up and running them. Do I understand correctly that they run efficiently at relatively high temps?
Click to expand...
just from what i read..i try to replicate..im just a construction kinda guy that can wire, solder ,cut metal things ..bang a hammer lol
 
WwW1962

WwW1962

Well-Known Member
Growmau5 said:
@WwW1962 You know xml-2 maxes out at 3000mA right? running them at 750mA will be fine for clones or nursery purposes, but if you are looking for the option to crank this baby up and do some real vegging you may want to consider a driver that can run them at 1400-1750mA. just my UN-solicited 0.02c (LPC60-1750 could run the 10 in the middle, not dimmable tho)
Click to expand...
it's for a small cabinet, basically seedlings, to mid size vegging, i read that it can power 30 of these @ 1 watt each , got a good meanwell coming from Supra's
advice..oh i meant good pot as in potentimeter..that was funny thou.. thanks for the replies folks.. many props to you all
WwW
 
SaltyNuts

SaltyNuts

Well-Known Member
cool, what do you mount them on?

Growmau5 said:
@WwW1962 You know xml-2 maxes out at 3000mA right? running them at 750mA will be fine for clones or nursery purposes, but if you are looking for the option to crank this baby up and do some real vegging you may want to consider a driver that can run them at 1400-1750mA. just my UN-solicited 0.02c (LPC60-1750 could run the 10 in the middle, not dimmable tho)
Click to expand...
WwW1962 said:
it's for a small cabinet, basically seedlings, to mid size vegging, i read that it can power 30 of these @ 1 watt each , got a good meanwell coming from Supra's
advice..oh i meant good pot as in potentimeter..that was funny thou.. thanks for the replies folks.. many props to you all
WwW
Click to expand...
 
WwW1962

WwW1962

Well-Known Member
Growmau5 said:
@WwW1962 You know xml-2 maxes out at 3000mA right? running them at 750mA will be fine for clones or nursery purposes, but if you are looking for the option to crank this baby up and do some real vegging you may want to consider a driver that can run them at 1400-1750mA. just my UN-solicited 0.02c (LPC60-1750 could run the 10 in the middle, not dimmable tho)
Click to expand...
Hello there Grow, im still a little illiterate on alot of this electrical language, but here's what im doing in this picture..taking out the 125w cfl and putting in my skeleton light,
just making a really improved footprint..maybe when i get a tent or a larger space i can get a different driver to make some bigger clients , as i like to call them :)
i learned so much from all you guys, and omg there is so much more im trying to read 101 pages atm lol
thanks so much
WwW
 

Attachments

WwW1962

WwW1962

Well-Known Member
WwW1962 said:
Hello there Grow, im still a little illiterate on alot of this electrical language, but here's what im doing in this picture..taking out the 125w cfl and putting in my skeleton light,
just making a really improved footprint..maybe when i get a tent or a larger space i can get a different driver to make some bigger clients , as i like to call them :)
i learned so much from all you guys, and omg there is so much more im trying to read 101 pages atm lol
thanks so much
WwW
Click to expand...
so i got 13 to power up with the 2 small 1w drivers from a very old thread lol little bit of y-slicers and a little mess of temp wire
1 driver does 7 lamps at 5.3 watts and second one is pulling 6 lamps at 4.7 watts......it lit up 7 but it was very weak light
big variation without using my multimeter.. runs cold as ice, getting that dimmable driver you recommended tomorrow..just waiting on the potentimeter
fire this baby up.. might have to heat up the cabinet floor , winter is approachiing :) thank you again Supra..you rock man
 

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WwW1962

WwW1962

Well-Known Member
SupraSPL said:
Hey man, what driver was it this one fasttech 18-36?

You could use the$30 Mean Well HLN-40H-54A , dimmable from 450-750mA or the HLN-40H-54B dimmable from 75mA-750mA
Click to expand...
fired up the HLN-40H-54B to 20 xlm 10w with no pot..i think im gonna need a more powerful one, it's pulling 60w @kilawatt meter and looks weak,
since im such a newb and old and lazy LOL whats the next powerhouse
WwW1962 said:
so i got 13 to power up with the 2 small 1w drivers from a very old thread lol little bit of y-slicers and a little mess of temp wire
1 driver does 7 lamps at 5.3 watts and second one is pulling 6 lamps at 4.7 watts......it lit up 7 but it was very weak light
big variation without using my multimeter.. runs cold as ice, getting that dimmable driver you recommended tomorrow..just waiting on the potentimeter
fire this baby up.. might have to heat up the cabinet floor , winter is approachiing :) thank you again Supra..you rock man
Click to expand...

38 watts now should grow um good
 

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SupraSPL

SupraSPL

Well-Known Member
Ya that is a 750mA 40W driver, very good for replacing 125W of CFL. If you need a much larger amount of light you can run the XMLs hard or just go with COBs. Are you building a flower of vegging light?

20 XML2 @ 750mA might put that driver into limp mode, might want to try 18-19 XML2. Not sure why it is pulling 60W, it should be ~47W.
 
WwW1962

WwW1962

Well-Known Member
SupraSPL said:
Ya that is a 750mA 40W driver, very good for replacing 125W of CFL. If you need a much larger amount of light you can run the XMLs hard or just go with COBs. Are you building a flower of vegging light?

20 XML2 @ 750mA might put that driver into limp mode, might want to try 18-19 XML2. Not sure why it is pulling 60W, it should be ~47W.
Click to expand...

my bad on the 60w bad vision =60hz i got 15 running great @ 38 watts draw, i had 19 going but 5 hours later it was flashing on and off
so i ran 15 totall, i built a COB cxa3070 single,, i mounted it between my 2 Mars 2 400's for the test..soon no more pink :D i did the math 54 volts divided by 3.5 = 15.4 stars
and it is a veg light my friend, thank you so much
WwW
 

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B

BoredOz

Active Member
Hey,

Long time lurker, first post but I've decided to get involved in the LED revolution, problem is I have a slight case of dyscalculia made even worse with you guys swapping between metric and imperial :lol:.

I saw the setup below in the thread and a further comment by supra that high PPFD could have negative on potency/flavor as well as diminishing returns, so have been trying to work out what the PPFD would be for a canopy space of either 60CM X 60CM or 75CM X 75 CM using the setup below, but converting into lux, then PAR and then umols etc just scrambles and switches my brain off :( .

The reason I have gone for 4 is to allow uniformity of light, by splitting the grow space into quadrants, although willing to take suggestions for ways to maximize this space?

@ 56.3%
(4) CXB3590 3500K CD 36V @ 1.4A (49W ea) $190
(1) HLG-185H-C1400 $65
196 dissipation W -> 85.7W heat ->
active cooled heatsink 3428cm² min -> 3.5"X36" heatsink (for spread) $45 +80mm fan +psu $10
(4) lenses $16
 
H

Hereseed

Active Member
BoredOz said:
Hey,

Long time lurker, first post but I've decided to get involved in the LED revolution, problem is I have a slight case of dyscalculia made even worse with you guys swapping between metric and imperial :lol:.

I saw the setup below in the thread and a further comment by supra that high PPFD could have negative on potency/flavor as well as diminishing returns, so have been trying to work out what the PPFD would be for a canopy space of either 60CM X 60CM or 75CM X 75 CM using the setup below, but converting into lux, then PAR and then umols etc just scrambles and switches my brain off :( .

The reason I have gone for 4 is to allow uniformity of light, by splitting the grow space into quadrants, although willing to take suggestions for ways to maximize this space?

@ 56.3%
(4) CXB3590 3500K CD 36V @ 1.4A (49W ea) $190
(1) HLG-185H-C1400 $65
196 dissipation W -> 85.7W heat ->
active cooled heatsink 3428cm² min -> 3.5"X36" heatsink (for spread) $45 +80mm fan +psu $10
(4) lenses $16
Click to expand...

Saw the setup you mentioned... I was leaning in that direction initially but am under the impression that the voltage cap won't allow it... The spreadsheet says 143v maximum and adding up the voltages on the cobs would land at you at 144v... I might be wrong but I think I read somewhere that those spreadsheet numbers are hard cap and can't be surpassed by even 1 volt...

Someone else may be able to chime in.

I wound up opting for 5 cxb3590 on a hlg-185-c1050b. The cobs are 180v and the driver cap is 190v... The driver on my setup can operate at 200 watts but running at 1050ma (I'm guessing) limits it to about 175w . I almost went with the hln-80h-36v but four of them would be almost 200 USD ...couldn't justify the added expense for the extra 25 watts that I'd probably dim down anyway.

Good luck with your project and keep us posted.
 
alesh

alesh

Well-Known Member
Hereseed said:
Saw the setup you mentioned... I was leaning in that direction initially but am under the impression that the voltage cap won't allow it... The spreadsheet says 143v maximum and adding up the voltages on the cobs would land at you at 144v... I might be wrong but I think I read somewhere that those spreadsheet numbers are hard cap and can't be surpassed by even 1 volt...

Someone else may be able to chime in.

I wound up opting for 5 cxb3590 on a hlg-185-c1050b. The cobs are 180v and the driver cap is 190v... The driver on my setup can operate at 200 watts but running at 1050ma (I'm guessing) limits it to about 175w . I almost went with the hln-80h-36v but four of them would be almost 200 USD ...couldn't justify the added expense for the extra 25 watts that I'd probably dim down anyway.

Good luck with your project and keep us posted.
Click to expand...
Vf of the whole series will be somewhere around 138V, no worries. And the drivers are not hard capped anyway.
 
SupraSPL

SupraSPL

Well-Known Member
I can verify the CXB3590 36V X 4 is OK for HLG-185-C1400. The voltage of the 4 COBs will add up to about 140V. However, I am not sure about the Vero29 X 4. I suspect the driver will have to reduce current very significantly to match them.

The driver behaves normal right up until its max voltage. Once you exceed that voltage, the driver will automatically reduce current until the Vf matches the drivers maximum. So if you go a few volts above that maximum, the driver will have to drastically reduce current to match the voltage.

So the question becomes, would the HLG-185H-C1400 put out more than 1050mA with 4 Vero29s? If not, the HLG-185-C1050 would actually provide more power and you could run 5.
 
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H

Hereseed

Active Member
alesh said:
Vf of the whole series will be somewhere around 138V, no worries. And the drivers are not hard capped anyway.
Click to expand...
Right on... Well if that's the case... I'm gonna use the same setup myself then... I've got everything but the driver.
SupraSPL said:
I can verify the CXB3590 36V X 4 is OK for HLG-185-C1400. The voltage of the 4 COBs will add up to about 140V. However, I am not sure about the Vero29s, I suspect the driver will have to reduce current to accommodate them.

The driver behaves perfectly normal right up until its max voltage. Once you exceed that it will reduce current until the Vf matches the drivers maximum. So if you go a few volts above that maximum, the driver will have to drastically reduce current to match the voltage.

So the question becomes, would the HLG-185H-C1400 put out more than 1050mA with 4 Vero29s? If not, the HLG-185-C1050 would actually provide more power and you could run 5.
Click to expand...
That's good news... I'll be grabbing up that 1400 instead.

Thanks guys... Not sure how, after all that reading,I didn't know that
 
dionysus4

dionysus4

Well-Known Member
would 6 72v cxb3590s fit on the HLG-185H-C500?

also is there a way to know the output at this current? the pct doesnt show below 700mA?

tnx
 
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