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brindle123 said:
\ If I could get some advice on a configuration it would be great. It is 4 1818 3500k 80 cri and 4 1212 3000k 90 cri. Using the light engines.With 2 drivers Not sure about driver's yet but don't know if I need to run them soft or hard and what efficiency I can expect. Want to shoot for the 40 or so watt sq, ft. range . The 1212's will be mainly supplemental. Hoping to get some feedback on this. brindle123
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Ultimately the driver you choose will depend on the total amount of volts(v) is needed by the series of COB LED you are wanting to power.

For example a series of 4 clu048-1212 diodes needs at least 138.4v from the driver to turn on. (34.6v per cob x 4= 138.4v) WIth this example in mind the 200 watt(w) Meanwell HLG 185H-C1400 driver at it's maximum output can produce 143v to power the series of 4 COBs with 4.6v to spare. Another 200w driver, the HLG 185H-C700 has a maximum output of 286v

Although most COBs are more efficient with lower operating temperatures, running a series of COB diodes soft or hard is a matter of personal preference.

With your current desires in mind you will need to a driver that draws 150-160 watts from the wall that can produce enough volts to power the series of diodes you want. An example of a 150-160w driver: Meanwell: HLG 120H-C series.

Just for the sake of information: Trying to power a 36v COB in series with a 34v COB usually won't work. Within this web forum and possibly others, Meanwell brand drivers are typically used but definitely not a requirement.
 
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Thanks for the reply Rayne and for the suggestions on the divers the HLG H-C700B sure looks like a work horse. I've looked at a lot of drivers this evening lol. Just wondering if the 18's and the 12's would work together. Brindle123
 
brindle123 said:
Thanks for the reply Rayne and for the suggestions on the divers the HLG H-C700B sure looks like a work horse. I've looked at a lot of drivers this evening lol. Just wondering if the 18's and the 12's would work together. Brindle123
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Absolutely just don't go over the drivers max voltage limit.
 
Could someone tell me the lumen per watt @120 for the CLU058 3618 5000k 80cri on a .21C/W heat sink? Just want to know what my new work light efficacy is:bigjoint:
 
Airwalker16 said:
Absolutely just don't go over the drivers max voltage limit.
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Yeah, no.

@brindle123 those cobs run at different voltages, so you'd only be at ~100W on one driver, and 140W on the other, and more importantly the 1818s would be brighter than the 1212s, which would be a problem if you plan on having them in the same fixture.

The 1212s especially would be underloading your driver pretty significantly at only 100W, especially if you dim.

If you really want to combine them an HLG-240H-C700 should work.
 
JorgeGonzales said:
Yeah, no.

@brindle123 those cobs run at different voltages, so you'd only be at ~100W on one driver, and 140W on the other, and more importantly the 1818s would be brighter than the 1212s, which would be a problem if you plan on having them in the same fixture.

The 1212s especially would be underloading your driver pretty significantly at only 100W, especially if you dim.

If you really want to combine them an HLG-240H-C700 should work.
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I didn't realize under driving would even be an issue. But he's righy, combine them all on to an HLG-240H-C700B.
 
Sounds like running the 18's and 12's together was a bad idea I was just trying to use the 12's as supplemental lighting. Just trying to hit the 40 watts a sq. ft. range. What might I use with the citizen line to achieve this. Thanks to all Brindle123
 
Rayne said:
Ultimately the driver you choose will depend on the total amount of volts(v) is needed by the series of COB LED you are wanting to power.

For example a series of 4 clu048-1212 diodes needs at least 138.4v from the driver to turn on. (34.6v per cob x 4= 138.4v) WIth this example in mind the 200 watt(w) Meanwell HLG 185H-C1400 driver at it's maximum output can produce 143v to power the series of 4 COBs with 4.6v to spare. Another 200w driver, the HLG 185H-C700 has a maximum output of 286v

Although most COBs are more efficient with lower operating temperatures, running a series of COB diodes soft or hard is a matter of personal preference.

With your current desires in mind you will need to a driver that draws 150-160 watts from the wall that can produce enough volts to power the series of diodes you want. An example of a 150-160w driver: Meanwell: HLG 120H-C series.

Just for the sake of information: Trying to power a 36v COB in series with a 34v COB usually won't work. Within this web forum and possibly others, Meanwell brand drivers are typically used but definitely not a requirement.
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Someone with knowledge. Please explain the difference between "HLG 185H-C700" and "HLG-185H-48A". i understand the A def. I am wondering about the C700. Is that 700 milliamperes? Versus 48 Amperes or 48,000 milliamperes? I know it's not. Just trying to understand the different descriptive terms. Thanks guys.

My objective. I am looking for light intensity, because I want that light to reach deep into the foliage. Of my prized pepper plants. Thanks also for making this distinction. "running a series of COB diodes soft or hard is a matter of personal preference.". I didn't finish my electrical degree and I have much respect for you as well as others who did. Like Jorge impresses the heck out of me. Even if much of the knowledge is over my head I will figure it out with a little direction. Tho some do have a tendency to think within their own terms. Efficiency. And not the objective some are looking for right or wrong. Driving it hard core! Some are just about effiency only. Which is good too. Safer as well.

Me.... I am just a micro pepper grower. My electric is cheap. I only need so many watts anyway for my two ongoing pepper plants. Being at the 50% efficiency level is not important. 50,000 hours life span of a cheap chip is not important. If I can get 10,000 without too much damage to the COB I will be fine replacing a SINGLE COB. NOT like 30 or 40. That would be substantial. I am a MICRO pepper grower. I come to a weed forum only because you potheads analyze shit to the umpteenth degree. AND I APPRECIATE YOUR ANALYSIS(the smart ones anyway). Thanks.

I will do this. As soon as I figure out all the terminology, wrap my head around what will meet my objective, what will be safe, while also being cheap enough if I destroy the parts and when I find a suitable vendor that understands my own needs and objectives.

Story time. So, my first and most basic electrical class, part of the syllabus required a little electronics experiment kit. Breadboard and a million little electronic parts. For little projects. Our first experiment was to power a tiny LED with a 9 volt battery through a resistor. Since the cheap LED was rated for like less than a Watt. Well.

POP! Sounded like a very large firecracker or, perhaps the sound of a small caliper hand gun. Maybe a 22 or 25.

This one genius blew up the LED because he wanted to experiment with wiring the LED directly to the 9 volt. lol. Genius is lucky he didn't put his eye out. No one was harmed thank goodness. I honestly hope the genius didn't pursue his electronics degree. It seems he might be better suited to being a packer in a marshmallow factory. It's true. Am I stoned? Maybe.

Mad Respect Peace n Love smart bro's!
 
GrowUrOwnDank said:
Someone with knowledge. Please explain the difference between "HLG 185H-C700" and "HLG-185H-48A". i understand the A def. I am wondering about the C700. Is that 700 milliamperes? Versus 48 Amperes or 48,000 milliamperes? I know it's not. Just trying to understand the different descriptive terms. Thanks guys.
Click to expand...

they are different types of drivers. the -C700 is a high voltage constant-current driver that runs cobs in series to the limit of its voltage. in no case can any cob see over ~770 mA. in an HLG185H-C700A the voltage limit is 286V so you can run 8 36V cobs on it (yes thats 288V but at 700 mA crees for example run at less than 33V ea)

the -48A (or -48B) is a constant voltage/constant current driver that maxes out at 53V and is used to run any number of cobs that require 24-53V in parallel (they should be the same model cobs for best results). current is split between cobs so in the max current is about 4.2A you can run any combination of the following for cobs that use between 24 and 53V:
[email protected] ea
[email protected] ea
[email protected] ea
4@1050 mA ea
.
.
.
10@420 mA ea
.
.
100@42 mA ea

etc

https://www.rollitup.org/t/matching-drivers-and-cobs.883866/
 
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CobKits said:
they are different types of drivers. the -C700 is a high voltage constant-current driver that runs cobs in series to the limit of its voltage. in no case can any cob see over ~770 mA. in an HLG185H-C700A the voltage limit is 286V so you can run 8 36V cobs on it (yes thats 288V but at 700 mA crees for example run at less than 33V ea)

the -48A (or -48B) is a constant voltage/constant current driver that maxes out at 53V and is used to run any number of cobs that require 24-53V. current is split between cobs so in the max current is about 4.2A you can run any combination of the following for cobs that use between 24 and 53V:
[email protected] ea
[email protected] ea
[email protected] ea
4@1050 mA ea
.
.
.
10@420 mA ea
.
.
100@42 mA ea

etc

https://www.rollitup.org/t/matching-drivers-and-cobs.883866/
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I think I get it bro! Thanks. So if one were to desire to run only a single cob near its rated wattage limit, one might opt for the 48v with a single COB at that voltage. And the resistance of the COB will only pull the rated amperes its designed for. Heat loss? Or heat find? Gotta be heat when you are pushing the limits right? Like the bright violence of the sun. Sorry. Woke up at 4:20 and my cognitive thinking may be a little off. I ain't leaving the house today. Plus that whiskey from last night damn. Let's all be responsible potheads.

So, if one desired to run only one COB. The 48 at 185? So now what does that 185 describe? It says 4.25 Amps.

I'll read that link. I must understand what I am doing and I do appreciate all of your input. Thanks for your patience. Peace and love since 4:20 am. :eyesmoke:
200w.gif


P.S. I searched for a Peace and Love GIF. That beautiful thing popped up and I had to just go with it. :rolleyes:
 
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