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

Matching Drivers and COBs

miggaman

miggaman

Member
Answering my own questions --- LOL I should have googled..

I wouldn't mind input from the experts on what driver to choose. One day I'll drive the COBs hard but in the beginning they're gonna be used with a distance of 20 inches to the canopy... so no need for maximum light, yet ;-)
 
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sleepless_canuck

Well-Known Member
SupraSPL said:
This chart shows how many COBs you can fit on each driver. Hopefully it will save DIYers some time or give them some ideas.

If the number of COBs is 3.93 for example, you could run 4 and you won't get the full drive current but you will get full driver efficiency. If the number is 4.1 that is a very good match, full driver efficiency and cost efficiency. (Driver efficiency is highest when the voltage load on the DC side is at or near the maximum)

The high voltage drivers work with the COBs wired in series. The high current drivers (HLG-320H and 600H) work with the COBs wired in parallel and those are good options if you want to run multiple COBs at high current. They are all dimmable. Prices are based on Onlinecomponents.com because they have $6.95 flat shipping cost. If you are buying 10 or more Sager might be the best bet.

View attachment 3500031
Click to expand...
Love to see a citizen version
 
Z

zblade

Well-Known Member
A quick question and I keep seeing these type of drivers in led panels.
This driver
HLG-60H-C700A
has a min forward voltage of 50volts and a max forward voltage of 100volts both DC with a constant current of 0.7amps.

How can I know for sure what voltage is going to cob when there is no way to adjust output?
I understand measuring with voltmeter to see what output is but then what is the (min,max) rating for,unless it has an adjustment.
I see a lot of these types of power supplies and I have a bad power supply now I'm trying to replace,but it amp range is 0.6-0.65 and voltage range is 42-84volts DC and input is 100-240volts,so I have no idea what to replace it with.
Any suggestions on how to replace the above ?
Also would it drive a 72volt cob or could it blow it?

 
febisfebi

febisfebi

Well-Known Member
I am trying to decide on a driver to power 2 clu058-1825's at around 160w. I was originally looking at using the HLG-320-48A and running them in paralell, but I am now leaning towards the idea using a constant current HLG-320-C3500, which is rated for 95v with open circuit on the dimming leads. This would leave me with 47.5v on max power. whereas the rated voltage range is 48-56v so I would be half a volt under with open leads which I would be using, along with a dimmer option.

Is this half a volt difference going to do make any difference at all between the two driver options? can anyone help with pro's/con's of each setup. I am familiar with the series/parallell difference, and I am coumfortable doing parallell if it is the better option. I would really appreciate any help with this, from anyone as I am trying to get a driver in the mail, hahah. @nevergoodenuf I know you have some experence with some of these high power cob's, I have enjoyed reading about your "high power " garden, so i'd certainly appreciate your input as well.
Thanks guys!
 
CobKits

CobKits

Well-Known Member
febisfebi said:
I am trying to decide on a driver to power 2 clu058-1825's at around 160w. I was originally looking at using the HLG-320-48A and running them in paralell, but I am now leaning towards the idea using a constant current HLG-320-C3500, which is rated for 95v with open circuit on the dimming leads. This would leave me with 47.5v on max power. whereas the rated voltage range is 48-56v so I would be half a volt under with open leads which I would be using, along with a dimmer option.

Is this half a volt difference going to do make any difference at all between the two driver options? can anyone help with pro's/con's of each setup. I am familiar with the series/parallell difference, and I am coumfortable doing parallell if it is the better option. I would really appreciate any help with this, from anyone as I am trying to get a driver in the mail, hahah. @nevergoodenuf I know you have some experence with some of these high power cob's, I have enjoyed reading about your "high power " garden, so i'd certainly appreciate your input as well.
Thanks guys!
Click to expand...
hlg-320-3500 wont work, the cobs need 54V each at that current

HLG320-48A will top out around 53.5V as well, you'll get about 150W per cob depending on cooling

for parallel id put them on their own HLG185-48As
for series id use hlg320h-2800A which will get you at 155-160W each
 
febisfebi

febisfebi

Well-Known Member
nevergoodenuf said:
I would run 2 CLU058 3618 on an HLG320H-C1400B in series.
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I would love to, but the price difference is too steep for me. how cheap are you getting them by the way though, i havenent really looked hard since they were in the $70-$80 range, and 2 3618's unfortunately do not equal 4 1825's
 
febisfebi

febisfebi

Well-Known Member
CobKits said:
hlg-320-3500 wont work, the cobs need 54V each at that current

HLG320-48A will top out around 53.5V as well, you'll get about 150W per cob depending on cooling

for parallel id put them on their own HLG185-48As
for series id use hlg320h-2800A which will get you at 155-160W each
Click to expand...
with the 2800a, I would be at 59v a piece at max power, well over the 53.5 they top out at. so that wont hurt the performance(waste energy), or the hurt cob for that matter?
In other words am I losing some potential energy that could be used to drive the cob with a different driver match, by going over voltage?
 
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franz77

New Member
Hello everyone, my first post, so forgive me in advance.
I read millions of post, but I'm still very confused, yesterday ordered two cxb3070 (3500k 36V model), a MW 150-2100 (709-LPC150-2100) and two Alpine 11 PLUS.
My intent is to put the two cob in series.. It will work?
Thanks again to all :)
 
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sleepless_canuck

Well-Known Member
I am going to run Hlg-240h-2100b and 2x clu1825 per driver.

I just need to confirm these will be wired to the cobs in series correct?

I don't have my potentiometer yet so can I still fire it up?

Other than that I'm basically assembled and ready to go.
 
CobKits

CobKits

Well-Known Member
Olive Drab Green said:
I am curious about Citizen, myself. People might think "Ah, Asian company! Piece of shit!" Japanese workmanship and Chinese workmanship are definitely on polar opposite ends of the spectrum. Citizen, on paper, is in the same echelon as Cree and Bridgelux/Vero.
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citizen and bridgelux are a generation ahead of cree, and citi is about to be 2 gens ahead in january
 
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