DIY with Quantum Boards
- Thread starter robincnn
- Start date
Nice dude. That's really cool.
Oh man, which version of hydrobuddy? I just went to find it recently after a suggestion. I could only find a version 1.62 and for windows (64bit) only. Which do you have and where did you get it? I found it pretty tricky to get working (and I didn't get it working perfectly). Have you seen this? https://www.rollitup.org/t/understanding-and-calculating-nutrient-ppm.995409/
Rollitup user created a nutrient profile calculator.
Greenleaf addressed someone saying something similar regarding V2 compared to V1 in another forum, I think, saying that there is more P, and Mag in V2, so that "doesn't make sense". But "on paper" it looks like it's a little low in phosphorus to me, too. But I'm only going off of the "Mel Frank" nutrient profile 'suggestion'.
Yup, I wanted to try jack for two reasons (other than cost); 1) As simple as can be, while still offering ability to manipulate some ratios. 2) Just elemental 'salts', with no organics, and 'clean', like you say.
I've found literally 1(!) shop where it can be found in canada. Pathetic.
I am also on 1.62.....All of your items are on the Main page tab ..... you have to add in your own fertilizers as it mostly comes with stock ferts such as calcium nitrate or magnesium sulfate sorta deal (no brands)
I then add all my ferts i have around to substance selection... i would start out adding up a jacks 3-2-1 (concentrations from weight) and that should give you a good ballpark on what your ppms need to be for a heavy feeding plant, and then adjust based on what your plant wants or doesnt want.... I am reverse osmosis and DWC so my ratio is more like 1.5-1-1 g/gal, with 1ml per gal of calimagic............. i usually never run over 1.0 EC and need heavy magnesium to remove purple stems with LED
I had to email jacks to order from them in canada.... a bit pricey (over 200$ after shipping for 25lb of 5-12-26 and 25lb cal nit) but i got enough fert to last me a lifetime
Thanks for the screen shot. Replies are above in the quote.
High Above
Well-Known Member
Hello, I have some experience with COBs from few years ago but I am new to QBs.
Basically i want to know if i can run 4 of THESE with HLG-185H-C1050. It exceeds the driver limit by 2 volts but my guess is that wouldn't be a problem. Real question is can this board be run under 1080mA which is what the seller says is minimal.
If my math is correct that would come out to around 58mA per chip. Can LM301B run at that current or is 65mA minimal? If not what driver would you suggest to run 4 of these boards as efficient as possible. My thought was 4 of them run as low at nearly 200W to cover 2x2 or just a bit over that(somewhere between 60x60 and 70x70cm).
Basically i want to know if i can run 4 of THESE with HLG-185H-C1050. It exceeds the driver limit by 2 volts but my guess is that wouldn't be a problem. Real question is can this board be run under 1080mA which is what the seller says is minimal.
If my math is correct that would come out to around 58mA per chip. Can LM301B run at that current or is 65mA minimal? If not what driver would you suggest to run 4 of these boards as efficient as possible. My thought was 4 of them run as low at nearly 200W to cover 2x2 or just a bit over that(somewhere between 60x60 and 70x70cm).
pop22
Well-Known Member
For 4 boards I'd run as minimum, a 240H-C1050. On this driver you could run 4 in series and have the ability to dim the boards to about 25 watts per board if yo really need to go that low.
High Above
Well-Known Member
pop22
Well-Known Member
with the 185H you can't run 4 boards in series, it doesn't have enough voltage to drive them. i don't see that as an effective level to run them at, but they can be yes according to Horticultural Lighting Groups QB288 spec sheet posted on their website.
Flux Characteristics with QB 288 V2 3000K at 55C
Flux Characteristics with QB 288 V2 3000K at 55C
| VDC | Current (mA) | Watts at Board | Lm/W at Board (55C) | μmoles/joule at Board (55C) |
| 45.72 | 500 | 22.86 | 206 | 3.00 |
| 46.98 | 1050 | 49.33 | 196.10 | 2.85 |
| 47.70 | 1400 | 66.78 | 190.50 | 2.77 |
| 48.96 | 2100 | 102.82 | 180.77 | 2.63 |
| 49.50 | 2400 | 118.80 | 177.50 | 2.58 |
| 49.86 | 2800 | 139.60 | 173.80 | 2.53 |
captainmorgan
Well-Known Member
He bought counterfeit boards, they don't run at the same voltage.
High Above
Well-Known Member
By what you posted @pop22 it says 47 volts at 1050mA which comes to 188V for 4 boards. And the driver has max output of 190V. Why would you think it's not an effective level to run boards at?
@captainmorgan What do you mean by that? Are counterfeit boards much worse? Is voltage on them lower, higher, not as consistent?
@captainmorgan What do you mean by that? Are counterfeit boards much worse? Is voltage on them lower, higher, not as consistent?
pop22
Well-Known Member
Sorry, looked at the wrong specs, was looking at the 185H-C1400.
It should work but again, IMO that's way under powered to be useful unless you put the 6" about your plant. I'm going to use the lumens stats just because they are easy to work with and make my point. 4 HLG-QB288 run @ 500ma will give you 18787.2 lumens, 4 @1050ma will give you 38694.4 lumens and still be highly efficient.
If your using Chinese rip offs, no telling what they might actually produce or if they are even really Samsung chips.
It should work but again, IMO that's way under powered to be useful unless you put the 6" about your plant. I'm going to use the lumens stats just because they are easy to work with and make my point. 4 HLG-QB288 run @ 500ma will give you 18787.2 lumens, 4 @1050ma will give you 38694.4 lumens and still be highly efficient.
If your using Chinese rip offs, no telling what they might actually produce or if they are even really Samsung chips.
High Above
Well-Known Member
pop22
Well-Known Member
High Above
Well-Known Member
Budzbuddha
Well-Known Member
Stardate : 73233.5
After a nice bowl of romulan in my volcano , I figured I would check on the plants .
Gojiberry got some LST done and is currently getting her shape . Decided to tuck leaves at this point to reduce stress.
As she branches out , I will continue to shape it. Temps are still good and they are drinking very regularly.
The simple 2 part soil mix is still going strong and just water ( ph 6.5 ) . So far , haven’t needed to add anything .
Sour Stompers ( one has sexed ) and topped while the other is just a little behind. And will get topped after some more growth.
4 King Kong Poison ( HAZEMAN ) seedlings are doing well in my mix WITHOUT burn. When I transplant them I will sprinkle a little Great White
in final container to help with roots and transplanting. Then same water only run.
I plan to pop another KKP in another solo but will grow it completely in cup for seed making . STS spray down of whole solo cup plant and collect FEMMY NUTS and pollinate a few branches of those growing 4 .... then toss that cup. These are very sturdy plants and want more beans.
QB96s are purring along and no issues.
After a nice bowl of romulan in my volcano , I figured I would check on the plants .
Gojiberry got some LST done and is currently getting her shape . Decided to tuck leaves at this point to reduce stress.
As she branches out , I will continue to shape it. Temps are still good and they are drinking very regularly.
The simple 2 part soil mix is still going strong and just water ( ph 6.5 ) . So far , haven’t needed to add anything .
Sour Stompers ( one has sexed ) and topped while the other is just a little behind. And will get topped after some more growth.
4 King Kong Poison ( HAZEMAN ) seedlings are doing well in my mix WITHOUT burn. When I transplant them I will sprinkle a little Great White
in final container to help with roots and transplanting. Then same water only run.
I plan to pop another KKP in another solo but will grow it completely in cup for seed making . STS spray down of whole solo cup plant and collect FEMMY NUTS and pollinate a few branches of those growing 4 .... then toss that cup. These are very sturdy plants and want more beans.
QB96s are purring along and no issues.
You found online stores with inventronics drivers, that sell to canada, and have actual stock? I don't believe it, haha.
daveybc
Well-Known Member
Cannademik
Active Member
This might be really dumb question but.. If the hlg 550 v2 are 480w.. And theyre 4 qb288s.. And each board is a max of 75watts... Whats powering the other 180?
Where did you get 75watts?