DiY LEDs - How to Power Them

T-Time

T-Time

Well-Known Member
I have a small problem with my setup.

2 loops.
1 consists meanwell hlg-480h-c1400b , 10x cxb3590 36v connected in series . Everything hooked up shows 2.17-2.19A on display when cranked to the max, but only 485W.
To make sure I connected each loop to socket power meter and its the same.
How is that possible ?
It should go upt to 1.4A max.

Any body could chime in ?
 
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GBAUTO

GBAUTO

Well-Known Member
T-Time said:
I have a small problem with my setup.

2 loops.
1 consists meanwell hlg-480h-c1400b , 10x cxb3590 36v connected in series . Everything hooked up shows 2.17-2.19A on display when cranked to the max, but only 485W.
To make sure I connected each loop to socket power meter and its the same.
How is that possible ?
It should go upt to 1.4A max.

Any body could chime in ?
Click to expand...
Is your meter measuring a/c input current? The driver is rated by its OUTPUT current and POWER. The A/C input current will be dependent on A/C line voltage to produce the rated power output.
 
T-Time

T-Time

Well-Known Member
GBAUTO said:
Is your meter measuring a/c input current? The driver is rated by its OUTPUT current and POWER. The A/C input current will be dependent on A/C line voltage to produce the rated power output.
Click to expand...
I think You might be right. I will look into it this week and let You know.
Many thanks :)
 
O

oill

Well-Known Member
Hey Everyone.

I am hoping someone can help me. I think I have some good drivers for the job, but wanted to get confirmation from someone who knows their stuff.

I have 6 of these on the way...
https://horticulturelightinggroup.com/products/qb288-quantum-board

I want to either power them with 1 driver, or with 3 different drivers. Preferably 1.

I was thinking either this:
https://www.meanwell.co.uk/mean-well-led-driver-hlg-600h-series-480w-605w-12v-54v.html

Or 3 of these:
https://www.meanwell.co.uk/mean-well-led-driver-hlg-185h-c-series-200w-500ma-1400ma.html

Am I in the right ballpark?
 
T

TheHero

Member
So, I just ordered 10x cxb 3590 A 36v. Now I am currious. Can I power them with HLG-240H-C1400B ( 5 of them on one driver) and be able to dimm them with external potentiometer? I think I can, just trying to be sure about it.
 
PilouPilou

PilouPilou

Well-Known Member
TheHero said:
So, I just ordered 10x cxb 3590 A 36v. Now I am currious. Can I power them with HLG-240H-C1400B ( 5 of them on one driver) and be able to dimm them with external potentiometer? I think I can, just trying to be sure about it.
Click to expand...
Yes you can no problem and B version is for an external potentiometer
constant current region HLG-240H-C1400B: 89V/179V
5 CXB3590: 171V
 
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G

G84

Well-Known Member
Can I mix 3000k and 3500k of same clu048 1212 if I wire them in parallel or different color has slightly different voltage?
 
T

TheHero

Member
I use hlg 240h c 1400B for 5 x 36V cxb`s and I cannot turn them higher than 1.05 amps, what could cause this? I use simple 100kohm potentiometer.
 
Growcob5

Growcob5

Active Member
UniversZero said:
Hi all, new poster here. For the last month or so, I've been scrubbing the various forums learning about LED systems in preparation of building a grow room ( whereas its been all outdoor in the past). Never being one to shirk from new territories and challenges, I decided on what seems to be the standard bearer of the LED frontier at the moment, the ubiquitous Cree cxb/ meanwell hlg on the massive heatsink combo.

I decided for my first build to keep things fairly simple, so I built a pair of these:
(4) 3590s 3500k 72v driven by the hlg-185h-700a (so 200w/unit) on a 7.58" profile heatsinksUSA 24" long sink...cob holders, thermal paste, yadda yadda. These were built for a 6x7 veg room... It looks like enough light for that task. Thus far, it appears as though the sinks can passively cool the CoBs sufficiently, so no fans needed. Pretty easy to do, even for a lunk such as myself ( take heart, all you hesitant self proclaimed electronically maladept people out there afraid to pull the trigger... This stuff is super easy to accomplish :).

The next builds will take another step and incorporate multi unit dimming, lenses, Daisy chaining, and red/far red/UV diodes, I think.

So first off,I would like to express some heartfelt gratitude to the pioneers of this brave new LED world on the forum, whose experimentations and risk taking have led me to my first successful builds done right the first time. Cheers!

Now, for the stoopid question... I ordered from Jerry over at KB, and thought I was getting the dimmable drivers. I received the "A" model, without the dimming leads on the output side. The drivers do have a single potentiometer labeled I/O however, which I'm guessing of an adjuster for the current output? Is this an effective dimmer, and if so, do I just get in there with what looks to be a Philips screwdriver to adjust it? No docs came with the driver and the PDF from meanwell didn't elucidate the matter much for me. Some insight would be most appreciated.
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No i or every once different but I have not checked out the specifications I want the 70 but is that 36 volt are efficient I would assume in easier and you can run more of them I love her off run more LED's then run glass of them brighter and maybe by running as many here lights may not be as bright but you're covering your area sweet thing is put some full spectrum 3 yr some full spectrum Cobbs in there and your white Cobbs do to times the photosynthesis straight bi adding eBay for spectrum Cobbs pink
 
Growcob5

Growcob5

Active Member
G84 said:
Can I mix 3000k and 3500k of same clu048 1212 if I wire them in parallel or different color has slightly different voltage?
Click to expand...
No ur good i do the sam as long as the bowl cages the same or the chip is the same you're perfectly fine even by helping cut the wire strips evenly well how this first evenly electricity so space them out evenly best car by ever used was a off brand cob and it's twice the size of a crazy ex be 3590 made by a capacitor company 13000lum to 24ooo max 50 volts dc. 3amp max 38by38 chip big come in 27k 4k 47k 55k
 
Mathias83

Mathias83

Member
Hello every one,

I have got a 4 CXA's from a friend and i will start my very first indoor with them for 1 - 2 plants .

I think a driver HLG-185H-1400c will do the job ?
what is the best heatsink to cool them ? considering every cob will run on 50 watt ?

thanks in advanced .
 
1

1212ham

Well-Known Member
TheHero said:
I use hlg 240h c 1400B for 5 x 36V cxb`s and I cannot turn them higher than 1.05 amps, what could cause this? I use simple 100kohm potentiometer.
Click to expand...
Many 100k pots are actually less than 100k, I had one that was 85k. A 10-15k resistor in series with the pot is common practice. Easy test, disconnecting one dimmer wire will put the driver at 100%.
We really need a sticky on dimmer pots, this has been discussed many, many times.
 
Growcob5

Growcob5

Active Member
mahiluana said:
:peace: a watercooled one seems to be champion in energy efficiency and lowest junction temp. :peace:View attachment 4022903 US$ 10,- / 3ft = 30 pcs CXA - if you want 3000W - no problem :confused::eyesmoke:
Click to expand...
Idk how good thay rr if ssy thay work i trust u but ull have to see they you like longer than a year the thermal management was working if they don't last any longer than a year thermal management was not working me personally I think running the full spectrum chips as I been telling people to come by and with white cob power you will find your self having no infrared or ultraviolet inside white cob. So glad to see somebody else besides real styles and myself that are using 3 watt full spectrum chips or Cobbs full spectrum
 
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