The Chinese Quantum Board Knock Off Builds

[DrKiz]

Lol many men wiser than I have


Thank you, that helps alot. I had a feeling that was going to be the answer. You were spot on with what I was looking at, the majo480s. I checked the A8 and it was up to 740 with the freight. I would probably have to finish this current grow with the blurples to pull off the A8. It took some massaging and diving to get up to the majo...

I might have to give that a go though buying a fiat when you want the ferrari is never a good decision lol. Not waiting on the gavita bugatti though lol, my tent is just for personal use

The price went up on the A8's... maybe because there is a shortage of LM301b's?? I see @mr4tune post above. Different company... but maybe they are experiencing a shortage.

I know you want to dive into an upgrade right now, but given the choice of doing another run with blurples to get the A8, versus going for the Majo 480's... I'd wait. What do you have left in your run? A couple months? Just wait, you'll thank me later once you install that bad girl in your tent.

And you'll never worry about upgrading or feeling any sense of buyers remorse.

 

[christopher jordan]

Just got a message back from Hortibloom..

"Currently Samsung lm301b is out of stock,so we use update Samsung lm561c or Sanan led chips,top one use 2560pcs lm561c and 160pcs 660nm,we test it comparing with mega plus 650w top with lm301b,the ppfd is almost same.Sanan led chips is made by famous China horticulture light company,they cooperate with HydroFarm in USA,CREE LED and also other brand led company,here is Sanan website for you reference:https://www.sananbio.com/.Mega Plus 650w top with Sanan（3072pcs white & 160pcs Osram 660nm）have higher PPFD than Mega Plus 650w top with Samsung lm561c. "

I remember reading about a shortage on here I think it was but never had an issue with it with Meijiu not so long ago. Input? Should I go with the lm561c? I've never heard of Sanan until now, but 512 more diodes...

Christopher Jordan, do you know which ones your running in yours?

I have the 301b's with the Osram reds. I'm not sure I trust anything else lifetime wise as white diodes go.

 

[Rocket Soul]

We have still not seen a single of our lm561c from meijiu go out, with the equivalent of approx 70qbs up and running over a few years. My buddy once talked about light loss but it was a driver issue. Iirc the quoted ppf/w (best values so top bins, high cct and low cri) of lm561c is 2.85 versus 3.1 on the 301bs at nominal.

At current situation it might be trickier, but it used to be you could get the Cs at almost half price than the Bs. You get about 10% efficiency boost for running half power per diode, and gain a bit more for lower temps, along with if you run at nominal your diodes will last longer.

Tldr: yes the lm561c is absolutely passable and in a different market situation may even be preferable to a diyer as you can generally just double up on boards at same cost. Personally id also trust that tthe lm561c alibaba top bin really is the top bin more than the lm301bs.
Lets phrase it like this: if theres a shortage of Bs in top bin at every moment due to quality working over a scale. And now there a seems to be a shortage in 301b period; do you really think Alibubbers have been sticking top bin in these lights during the last 6 months. They stopped selling 301b lights now cause they just cant find top quality diodes and they would never dream of selling lower bins? Please...

But thats not the point, point is you can still get something good enough, even so you can just go the diy route with Digikey/arrow or even hlg and get something that works best for you and not spend 2 crops in decision angst.

 

[DrKiz]

Lol many men wiser than I have


Thank you, that helps alot. I had a feeling that was going to be the answer. You were spot on with what I was looking at, the majo480s. I checked the A8 and it was up to 740 with the freight. I would probably have to finish this current grow with the blurples to pull off the A8. It took some massaging and diving to get up to the majo...

I might have to give that a go though buying a fiat when you want the ferrari is never a good decision lol. Not waiting on the gavita bugatti though lol, my tent is just for personal use

Check this out, it may be a solution for you. Cheaper than the A8's... 600watt Meijiu Majo's. I don't know why they also call Majo's octopus and novedades??

This product is no longer available.

This product is no longer available.

www.alibaba.com

 

[mr4tune]

Thanks for the info. I asked about a discount for having to go with the C's given the efficiency and price difference. The rep told me that they add in another 256 white /16 red with the C's, and 768 white / 48 red with the Sanan's to compensate. The C's and Sanaan get an extra 80umol over the B's due to the count. I've responded asking about why there is not a price drop given the C's are much cheaper.

They have also jacked their prices up considerably. The price list I was sent says that the panel with the C's is $519 USD, but the price she quoted me was $699. THey advertise that shipping is included in the price so I'll see what they say.

Geek lighting is saying that they still have the lm301b's in their panels from old stock, but I'm not taking a 1000+ diode loss just to have UV capabilities.

I only need 2 panels I'm going to pull the trigger on on the C's. The difference is negligible in my small setup and I needed the panels 2 weeks ago lol. As irrelevant as it is, I do like that Hortibloom has color options for their fixtures at no additional cost. Looking forward to eventually doing a side by side with the same cuts under each of the 2 manufacturers.

 

[Rocket Soul]

Thanks for the info. I asked about a discount for having to go with the C's given the efficiency and price difference. The rep told me that they add in another 256 white /16 red with the C's, and 768 white / 48 red with the Sanan's to compensate. The C's and Sanaan get an extra 80umol over the B's due to the count. I've responded asking about why there is not a price drop given the C's are much cheaper.

They have also jacked their prices up considerably. The price list I was sent says that the panel with the C's is $519 USD, but the price she quoted me was $699. THey advertise that shipping is included in the price so I'll see what they say.

Geek lighting is saying that they still have the lm301b's in their panels from old stock, but I'm not taking a 1000+ diode loss just to have UV capabilities.

I only need 2 panels I'm going to pull the trigger on on the C's. The difference is negligible in my small setup and I needed the panels 2 weeks ago lol. As irrelevant as it is, I do like that Hortibloom has color options for their fixtures at no additional cost. Looking forward to eventually doing a side by side with the same cuts under each of the 2 manufacturers.

Dont know, may be the time to go for qb96s on low from hlg if your stateside. The most basic 480w setup is about 250 for the boards and sinks + about 100 for drivers. This would be a setup that needs some decent hanging height though.
If you wanna add more boards (highly recommend another 2 or even 4) just add accordingly for better spread and lower hanging height. A bit of alu for frame or however you wanna hang things. Counter a lot of advice for strips: multiple well placed boards should give you more even spread since you can get corners better covered. Homogeneous distributed strips tend to hot spott the middle and cold spot corners. Also HLG made this easy for us and if you go for 6 boards you can easily increase total wattage to 750w for another 45$, might aswell if china isnt up for the challenge right now.

 

[mr4tune]

I'm north of the border so we get raped on the exchange. Height is a factor for me as I'm in a basement. I have 14'x14' roughly to utilize but half the ceiling I'm down to 6' height due to some drop down bullshit for the plumbing upstairs.

I'm quite partial to the strip panels given the results I'm getting off my Meijiu's. I'd like to figure out a QB setup for my 4x8 tent veg tent though. I have a bunch of 630 CMH's so I could use one of those but I'm done with this juggling heat bullshit. This little money pit I have going will be straight LED and I'll never look back. That being said if you have a suggestion for that tent I'm all ears dude...

 

[GBAUTO]

Honestly, with that much of a headroom restriction, you're going to have to adjust the grow style to fit into that space.
Panels or strips would give you the most room to work with.
Lostleafmichigan has a commercial grow that he's running on a rack system. Pretty dope setup.

 

[mr4tune]

Honestly, with that much of a headroom restriction, you're going to have to adjust the grow style to fit into that space.
Panels or strips would give you the most room to work with.
Lostleafmichigan has a commercial grow that he's running on a rack system. Pretty dope setup.

My veg tent has x4 30 gallon 6-site DWC totes. The panels in my flower room have plants 8" away and 5' high. The highest plant went between the bars and above the lights. Didn't anticipate that stretch. I love my Meijiu's for this...

The QB's in the veg tent would only see the plants get 18" - 24"max given the spacing of 6 sites per tote which are 1.5' high each. Should be more than enough room

 

[Xsan]

The price went up on the A8's... maybe because there is a shortage of LM301b's?? I see @mr4tune post above. Different company... but maybe they are experiencing a shortage.

I know you want to dive into an upgrade right now, but given the choice of doing another run with blurples to get the A8, versus going for the Majo 480's... I'd wait. What do you have left in your run? A couple months? Just wait, you'll thank me later once you install that bad girl in your tent.

And you'll never worry about upgrading or feeling any sense of buyers remorse.

The price went up on the A8's... maybe because there is a shortage of LM301b's?? I see @mr4tune post above. Different company... but maybe they are experiencing a shortage.

I know you want to dive into an upgrade right now, but given the choice of doing another run with blurples to get the A8, versus going for the Majo 480's... I'd wait. What do you have left in your run? A couple months? Just wait, you'll thank me later once you install that bad girl in your tent.

And you'll never worry about upgrading or feeling any sense of buyers remorse.

Check this out, it may be a solution for you. Cheaper than the A8's... 600watt Meijiu Majo's. I don't know why they also call Majo's octopus and novedades??

This product is no longer available.

This product is no longer available.

www.alibaba.com

Good looking out partner! I also stumbled across the kingrbite bar today with Cree instead of Osram. Interesting part though is they are both running the same driver but Meiju is claiming 650w vs 600 for the kingbrite?

This product is no longer available.

This product is no longer available.

www.alibaba.com

 

[DrKiz]

Good looking out partner! I also stumbled across the kingrbite bar today with Cree instead of Osram. Interesting part though is they are both running the same driver but Meiju is claiming 650w vs 600 for the kingbrite?

I'm not sure how that all works, @Rocket Soul may know why that is, he's pretty up on that kinda thing.

I do know that my 800watt Majo's and the MJ-650 read 800watt and 650 watt respectively at the wall, plus or minus a couple watts. So they are pretty bang on at Meijiu with my experience. Although I did read on this thread some pages back about a guy not getting 1000 watts out of his 1000 watt fixture. 1000 watts is pretty much overkill anyways. I know with the 800watt 10 bar I had them make for me specially, I only use the full power for mid flower, otherwise I run them at 75%... much less for vege obviously.

I had three Bava 240's, the first two I bought came out at around 255 watts, whereas the third one I bought came in at 240 watts. The third one looked different as it had a cover over the driver, but the same thing. Ended up selling it to a friend to get him started growing (Nothing wrong with the fixture, I just wanted to hold on to the two that were consistent with each other.

 

[Chew420]

Oh perfect. Are you running the 650w model? Did you add in any of the UV or IR options?

I'm lost with what panel to go with. My plants under the CMH have stretched too much and are in the danger zone and showing some signs of heat stress. I need to pull the trigger on another panel here asap so I can swap the CMH's out. I'm hoping someone with some knowledge can maybe help me out lol. So far I've narrowed it down to the Geekbeast Pro 650w or the Hortibloom Mega Plus 650w. Both seem to come in around the $950 CAD range but if there's another option I've overlooked I'm all ears.

Hortibloom offers some different UV + IR addon options and utilizes 8 bars compared to 6 with the Geek. Obviously the Geek's based around the separately controlled UV that comes standard. Not sure why they both use the Inventronics drivers VS the Meanwells? I'd like to add some UV but I don't know enough about it to decide if it's worth it or not. I like that Geekbeast can individually control the UV but I'm waiting for a response from them as they say that when the UV is on the watts are just over 590w but advertise its 650w from the wall? Wondering what the panel pushes when it isn't on if that's the case? I asked Hortibloom how their UV works and if they are controlled separately from the others and what the power draw difference is with them on/off.

There seems to be some substantial differences in ppfd readings between the two providers so I'm not sure how to interpret that. The geek only looses like 50 ppfd from 12" to 18" and they have 1000+ in the corners regardless of height. Yet the mega loses 300 in the centers at a 6" difference and goes from 709 in the corners at 12" to low 600's at 18". I figured it would be the other way around with a 6 bar VS 8 bar?

Any advice or input is more than welcome

Thanks

Hey check out growlights.ca they have a bunch of quantum boards with Samsung lm301h also have ones with cree xpe2 as well as 660 reds i beleave the reds are epistars though they include meanwell drivers with all kits and there prices are on par or cheaper than alibaba suppliers and these guys are located in canada. A friend of mine picked up a light from them and he lovez it very nice light great quality and hes had a couple kick ass runs with it. So you or anyone else interested might want to give them a look. I think they have free shipping also i know they did, i have not checked thesite in maybe a month but i think you can source a light from them cheaper perhaps they had from 1 board to 6 board setups. They have other things like tents and a couple other lights to. Goodluck.

 

[mr4tune]

Yeah thats the guys i bought most of my gear off of before. I'll get my QB veg lights off there for sure. I just wish they had strip bar panels.

I was waiting for a reply back from Hortibloom but all i got finally was a "sorry we're away for the holidays" message. Guess there's something big going on there this week.

 

[insomnia65]

Hey check out growlights.ca they have a bunch of quantum boards with Samsung lm301h also have ones with cree xpe2 as well as 660 reds i beleave the reds are epistars though they include meanwell drivers with all kits and there prices are on par or cheaper than alibaba suppliers and these guys are located in canada. A friend of mine picked up a light from them and he lovez it very nice light great quality and hes had a couple kick ass runs with it. So you or anyone else interested might want to give them a look. I think they have free shipping also i know they did, i have not checked thesite in maybe a month but i think you can source a light from them cheaper perhaps they had from 1 board to 6 board setups. They have other things like tents and a couple other lights to. Goodluck.

Amazing prices.

 

[DrKiz]

Just got an email. Meijiu has a new 6 bar folding light: MEIJIU-F6-650W-V2. $478 usd plus shipping.

 

[insomnia65]

Just got an email. Meijiu has a new 6 bar folding light: MEIJIU-F6-650W-V2. $478 usd plus shipping.

The shipping to the UK is near the price of the kit, I think DIY is the way to go for me.

 

[mr4tune]

Just got an email. Meijiu has a new 6 bar folding light: MEIJIU-F6-650W-V2. $478 usd plus shipping.

Just saw this and checked their alibaba site out... Looks like they have an 8-bar as well now. Seems like a few manufacturers are going this route...

You cant see it in this picture but they are saying there is 3 different diodes... the Osrams and x2 of the LM301B's but the one looks blue. They don't say anything about UV or different spectrums but you can clearly see in the pic on their site that its blue. It wont let me save the picture though...

The new models say 3.7% blue ratio compared to 2.9% on the A8's but its pretty clear the difference just looking at it. Wonder if I should grab 2 of these ones rather than the Hortiblooms...

 

[mr4tune]

The shipping to the UK is near the price of the kit, I think DIY is the way to go for me.

That sucks a big one. I thought our cost to ship to Canada was bad @ $200 something USD.

 

[bk78]

Just saw this and checked their alibaba site out... Looks like they have an 8-bar as well now. Seems like a few manufacturers are going this route...

You cant see it in this picture but they are saying there is 3 different diodes... the Osrams and x2 of the LM301B's but the one looks blue. They don't say anything about UV or different spectrums but you can clearly see in the pic on their site that its blue. It wont let me save the picture though...

The new models say 3.7% blue ratio compared to 2.9% on the A8's but its pretty clear the difference just looking at it. Wonder if I should grab 2 of these ones rather than the Hortiblooms...

View attachment 4702916

They’ve had the 8 bar for well over a year already.

 

[Xsan]

Just got an email. Meijiu has a new 6 bar folding light: MEIJIU-F6-650W-V2. $478 usd plus shipping.

so F6 or A8.... lol I better order quick before I am four models behind.