Moabfighter
Well-Known Member
Thanks brother got any photos of your harvest? I can’t find you based on clicking on your profile name.
DIY with Quantum Boards
- Thread starter robincnn
- Start date
Doug Dawson
Well-Known Member
Yeah, I had a thread going with regards to the light but it got closed after some folks made it into a fighting with each other thread, lol. I didn't actually weigh the harvest except the smallest plant. Got 9 or 10 jars out of the 2 bigger plants. Half a dozen each out of the other 2. Was pretty decent for my first run under LED.
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Doug Dawson
Well-Known Member
Each pic of the dry tent was 1 plant, I took them down one at a time. The jars is 1, the bowl was the smallest plant.
pop22
Well-Known Member
This is HLG's only competition......... until you see the price! You got a big bargin!
https://shop.fluence.science/store/spydr-series/spydr-2i/
https://shop.fluence.science/store/spydr-series/spydr-2i/
pop22
Well-Known Member
Not enough voltage with that driver. The QB 324 uses about 106 volts if I remember correctly
I'm running a pair of them on a 240H-C1050B. They are running at about 130 each, near their 150 watt max.
I'm running a pair of them on a 240H-C1050B. They are running at about 130 each, near their 150 watt max.
PJ Diaz
Well-Known Member
It's $450 off right now for a limited time: https://growgreenmi.com/fluence-spydr-2i-led-panel-without-power-cord-top-seller
pop22
Well-Known Member
PJ Diaz
Well-Known Member
Parallel drivers? Or parallel boards?
ilovereggae
Well-Known Member
hmm not sure about that as a general statement, but i could see what u mean specifically regarding running Constant Current (C series) drivers in parallel which is what was suggested above.
I also figured the same is true for a CV driver? probably should only use them for parallel and not series, even if the modules added up are within range.
in either case u could also then do a Seies > Parallel string for CC or the reverse for CV.
the suggestion of 2 boards in parallel off a 320 A series driver (which is CV) seems correct to me tho.
pop22
Well-Known Member
pop22
Well-Known Member
Use a 320H-C1400 if you plan to run them at max on stock heatsinks. I'm not one to run them that hard, I see no need and on the 240H-C1050 I'm getting 280 watts from the wall, about 130 watts per board, run in papallel. My 4 board QB 304 ( also a 100+ V board ) I've never run above 85 watts per board and I've grown some damn fine bud under it! The last one was this girl, then i replaced it with the Diablo boards.
pop22
Well-Known Member
ilovereggae
Well-Known Member
maybe it's too early, or the fact that I've run out of coffee. but I dont get the math on this. I agree with running boards soft.. but on a 240-C1050 driver if you attach the boards in parallel... won't they each get their 100+V but then split the available current? I don't see how you could pull more than @ 100W that way?
this one kind of makes more sense bc each board will get 700ma... Seems like it would be closer to 70W per board or 280W total...
but either way I'm pretty sure CC drivers are meant to be used for series arrays.
can u do a sketch or show a photo of your wiring so I can understand how you are doing this?
this is what I found on MW website about it:
"Connecting multiple LEDs to a constant current LED driver in parallel is not recommended.
Constant current LED drivers are used to power LEDs that have no internal current regulation. When you connect multiple LEDs to a constant current LED driver in parallel, you run the risk of reducing the life span of your LED’s...."
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cobshopgrow
Well-Known Member
meanwell basically dont recommend connecting leds in parallel.
while even on the boards themself there are always some leds in parallel and as you know, matching is good enough.
there isnt really a driver from meanwell for leds i am aware of which doesnt offer a constant current region, is a CV driver only.
even the widely used HLG 240 48A is f.e. a CC and CV.
there is technically no difference in what the drivers are doing as long youre in the CC region.
CONSTANT CURRENT REGION Note.4
24-48V
※ This series is able to work in either Constant Current mode (a direct drive way) or Constant Voltage mode (usually through additional DC/DC driver) to drive the LEDs.
if youre above 48V youre in CV mode, as the led matching is fine you dont need a extra DC/DC or preresistors to have a good enough distributed current.
while even on the boards themself there are always some leds in parallel and as you know, matching is good enough.
there isnt really a driver from meanwell for leds i am aware of which doesnt offer a constant current region, is a CV driver only.
even the widely used HLG 240 48A is f.e. a CC and CV.
there is technically no difference in what the drivers are doing as long youre in the CC region.
HLG-240H-MEAN WELL Switching Power Supply Manufacturer
MEAN WELL is one of the world's few standard power supply mainly professional manufacturers, covering 0.5 to 25,600W products are widely used in industrial control, medical and other fields, in line with international safety certification, short delivery of spot inventory.
www.meanwell.com
24-48V
※ This series is able to work in either Constant Current mode (a direct drive way) or Constant Voltage mode (usually through additional DC/DC driver) to drive the LEDs.
if youre above 48V youre in CV mode, as the led matching is fine you dont need a extra DC/DC or preresistors to have a good enough distributed current.
ilovereggae
Well-Known Member
That makes sense to me for the regular drivers that are CC/CV. But aren't the "C" version specifically constant current?
In Pops example using a 240-C1050 I don't understand how if only using 100ish volts how it will output more current than it is rated for? Won't parallel array split the 1050ma current?
I admit I had some of this wrong when I built my fixtures. I run 4 QB 288 boards in series on a 240-C1050b. I realized after a year that if I only give my boards 1050ma they will only pull @ 48V each so I'm only getting about 50W per board not 60W like I had originally planned for. Since my driver has 238V available, I've got about 40+V left over that I am not using. So while my driver can pull 240W from the wall, I'm only actually using 200W with my fixtures. At least that is my current understanding.
Totally could be wrong with all of this so please correct me if so. I definitely am still learning.
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cobshopgrow
Well-Known Member
as far i followed youre absolute right.
the 1050mA will split to everything in parallel, as you wrote.
the driver wont go over its specifications, or not by that much.
there is probably just something lost in translation.
youre spot on with your 2040-1050c also as far i see.
only wanted to say rules apply to every meanwell driver, there will be many boards in parallel out there running in the CC region of their 54 or 48V CC/CV drivers.
there are CC only drivers also, true.
the 1050mA will split to everything in parallel, as you wrote.
the driver wont go over its specifications, or not by that much.
there is probably just something lost in translation.
youre spot on with your 2040-1050c also as far i see.
only wanted to say rules apply to every meanwell driver, there will be many boards in parallel out there running in the CC region of their 54 or 48V CC/CV drivers.
there are CC only drivers also, true.
Scwirl1611
Active Member
ilovereggae
Well-Known Member
cool thanks. I feel confident on series builds, however parallel always makes me stop and recalculate.
for example when using series/CC its easy to design a soft running fixture simply by giving the strips less current than they are rated for.
in parallel/CV I misunderstood and was assuming that if I gave say a 48V CV, then the modules would just split whatever available current there is. However while this is true, if you give a strip or board 48V and it uses say 1A of current at that voltage, and it only has 500ma available to it, it is still going to try to pull 1A from the driver. This can cause the driver to overheat and shut off / fail. So in order to make a parallel build work that way you need to figure out the voltage the module will use at your desired current draw. The datasheets aren't written that way which makes it a lot harder to figure out *with strips at least.
cobshopgrow
Well-Known Member
"uses say 1A of current at that voltage, and it only has 500ma available to it, it is still going to try to pull 1A from the driver.This can cause the driver to overheat and shut off / fail. "
i think there is some unecessary complication.
you will always have the limit of the driver itself limiting the max current.
in the case of the 240-48A its 5A.
every led needs a limit otherwise it will try to pull inifinty current till it blows up.
in above case if voltage screw is set to max it will be a good 5A still as limit (the 240W ones have quite some headroom), dont think it will shut of.
to increase the lifetime meanwell recommend using about 80% of the rated power, but thats another story.
i think there is some unecessary complication.
you will always have the limit of the driver itself limiting the max current.
in the case of the 240-48A its 5A.
every led needs a limit otherwise it will try to pull inifinty current till it blows up.
in above case if voltage screw is set to max it will be a good 5A still as limit (the 240W ones have quite some headroom), dont think it will shut of.
to increase the lifetime meanwell recommend using about 80% of the rated power, but thats another story.