The Chinese Quantum Board Knock Off Builds

mr4tune

mr4tune

Well-Known Member
I was 60% and 36" for veg and it was primo. I fried them before that. Ask DrKiz how many times I messaged him for help before dialing them in lol
 
Rocket Soul

Rocket Soul

Well-Known Member
DrKiz said:
Yeah, I had a similar issue in my 9x5 with the Meijiu Majo’s (Octopus). Could only get around the front and one side. Major pain.
Readjusted tent this grow.
So yes, a little tip with these bar fixtures:
If you want to adjust height make sure you have access to more then just one or two sides.
Click to expand...
This is the main consideration in these bar light of Fotop setups, access to all sides.
Meanwell, inventronics theyll wack on any driver in stock. Theyre pretty much equal afaik but ive seen temp tests favoring the inventronics but only one offs, i thinknit could also be flukes...
 
J

Jinx33d

Member
Hi guys I’m about to order meijiu 650 a8 unit and have some questions
1. I thinking take the 3500k but mostly going flower should I take 3000k??
2.i got 16a and 250v from the socket do I need to mention it to the seller and witch driver will work the best?
3.thinking of taking only the 301b+660 osram far red or should I add ir??
Any more consideration or tips before I buy??
4x4 flower tent
 
Rocket Soul

Rocket Soul

Well-Known Member
Jinx33d said:
Hi guys I’m about to order meijiu 650 a8 unit and have some questions
1. I thinking take the 3500k but mostly going flower should I take 3000k??
2.i got 16a and 250v from the socket do I need to mention it to the seller and witch driver will work the best?
3.thinking of taking only the 301b+660 osram far red or should I add ir??
Any more consideration or tips before I buy??
4x4 flower tent
Click to expand...
When they say IR its almost allways a Far red, same thing. id say go for it, especially if it can be turned on and off. 3500k or 3000k. It matters really little to be honest. 3500k should be more forgiving, more blue more transpiration and more nutes to power photosynthesis. Yield will be very similar. Dont get bogged down in details too much. As for power: meanwells will handle that no problem. and im sure inventroncis as well. But the real way of doing this would be asking meijiu which driver they supply and check the data sheet, they are your friend and its best to get used to read them before buying. If you actually can, then dont get the china driver. get the same model in your country and connect it yourself. If it breaks down and has to go to china you have a non-actionable warranty since trnasport to china might be as expensive as a new one.

More consideration: as reads on my answer above, how will you access from atleast two opposite sides for hanging and raising and lowering? Have you thought of how you will control climate? you need a extractor that can be set to do both temp and RH control; Ac infinity cloudline series, the version with the regulator, not just the fan is what most recommends.

Have you put thought into stealth and smells? you generally need a carbon filter sized a bit larger than your fans capacity and ideally having it inside the tent, over your light. Space might be an issue. If smells are a big deal then carbon filter on the outside is ok.

Happy growing
 
J

Jinx33d

Member
Rocket Soul said:
When they say IR its almost allways a Far red, same thing. id say go for it, especially if it can be turned on and off. 3500k or 3000k. It matters really little to be honest. 3500k should be more forgiving, more blue more transpiration and more nutes to power photosynthesis. Yield will be very similar. Dont get bogged down in details too much. As for power: meanwells will handle that no problem. and im sure inventroncis as well. But the real way of doing this would be asking meijiu which driver they supply and check the data sheet, they are your friend and its best to get used to read them before buying. If you actually can, then dont get the china driver. get the same model in your country and connect it yourself. If it breaks down and has to go to china you have a non-actionable warranty since trnasport to china might be as expensive as a new one.

More consideration: as reads on my answer above, how will you access from atleast two opposite sides for hanging and raising and lowering? Have you thought of how you will control climate? you need a extractor that can be set to do both temp and RH control; Ac infinity cloudline series, the version with the regulator, not just the fan is what most recommends.

Have you put thought into stealth and smells? you generally need a carbon filter sized a bit larger than your fans capacity and ideally having it inside the tent, over your light. Space might be an issue. If smells are a big deal then carbon filter on the outside is ok.

Happy growing
Click to expand...
First of all let me say tanks for the fast and good replay. So I will take the 3500k,about the far red I will ask them but it’s doesn’t seam like it’s have switch for off and on ,not sure how true it’s is but i read somewhere that the lifespam of the far red diods if much less than the others so I not sure about it and will like to hear opinions on this. about the cooling the fixture I planed put 6inch fan on the top and yes I know it’s will draw hot air back down but I planing to put the driver out of the tent and I will play with this and see how it goes,hope it’s not get to much hot because I don’t have ac .about the carbon filter I planed to put on the top of the tent but i guess I could play with it and see how it’s work the best.
for the driver they marketing the fixture with meanwell not sure which one and i will need help on what to look in the sheets

thanks for the help
 
Rocket Soul

Rocket Soul

Well-Known Member
Jinx33d said:
First of all let me say tanks for the fast and good replay. So I will take the 3500k,about the far red I will ask them but it’s doesn’t seam like it’s have switch for off and on ,not sure how true it’s is but i read somewhere that the lifespam of the far red diods if much less than the others so I not sure about it and will like to hear opinions on this. about the cooling the fixture I planed put 6inch fan on the top and yes I know it’s will draw hot air back down but I planing to put the driver out of the tent and I will play with this and see how it goes,hope it’s not get to much hot because I don’t have ac .about the carbon filter I planed to put on the top of the tent but i guess I could play with it and see how it’s work the best.
for the driver they marketing the fixture with meanwell not sure which one and i will need help on what to look in the sheets

thanks for the help
Click to expand...
You should be fine with cooling, im talking about the extraction: you need extraction that is regulating your temps in order to haave +81F, under that temps youll have probs with transpiration and just poor performance with leds. This means you need something that auto regulates and will dial down extraction with low temps. The ac infinity cloudline is a good all in one solution if you get the version with controller.
On far reds and any color supplement, if you can get it separately for control its much better but if not a big extra cost go for it.
 
1souljah

1souljah

Well-Known Member
Jinx33d said:
Gratz for the new toy I palaning to buy one too.what is your first impression is it worth it??
and how hot this gets??
Click to expand...
On paper, i thought it was worth it, especially for the price. Now that I own them, I'm not disappointed. Quality is good, well-built (frame, circuit, connectors, leds, dimmer). Will it last? Only time will tell.
As far as heat, I don't have numbers yet (still vegging under 400w MH), but MUCH cooler than my 600w HPS.
 
mr4tune

mr4tune

Well-Known Member
I'm sure this has been covered so I apologise in advance, but what's the difference between the Osram and Eipstar 660's? I found a panel manufacturer here in Canada but they use Epistars on their 4 bar 480w panels and the Osram's on their 6 bar 660w'ers....
 
bk78

bk78

Well-Known Member
mr4tune said:
I'm sure this has been covered so I apologise in advance, but what's the difference between the Osram and Eipstar 660's? I found a panel manufacturer here in Canada but they use Epistars on their 4 bar 480w panels and the Osram's on their 6 bar 660w'ers....
Click to expand...
Mind sharing who the manufacturer is? I’m looking to build a few veg lights.
 
DrKiz

DrKiz

Well-Known Member
Bastardman said:
Thanks, how about veg.
Click to expand...
I'll have to get back to you. Garden is on autopilot. It's my first run using them for
mr4tune said:
I was 60% and 36" for veg and it was primo. I fried them before that. Ask DrKiz how many times I messaged him for help before dialing them in lol
Click to expand...
Yeah man, and I was still trying to get mine dialed in. I basically went with @bk78 numbers he posted in another thread and it worked out great.
 
FlakeyFoont

FlakeyFoont

Well-Known Member
mr4tune said:
I'm sure this has been covered so I apologise in advance, but what's the difference between the Osram and Eipstar 660's? I found a panel manufacturer here in Canada but they use Epistars on their 4 bar 480w panels and the Osram's on their 6 bar 660w'ers....
Click to expand...
Ford vs Ferrari, lol! I have 240 panels with Epistar. I, personally, have no way to see if the Epistars add anything, maybe they are fine. But I know Osram puts out quality (I've used their products in residential/commercial building). Sylvania/Osram stuff works like it's supposed to.
 
GBAUTO

GBAUTO

Well-Known Member
FlakeyFoont said:
Ford vs Ferrari, lol! I have 240 panels with Epistar. I, personally, have no way to see if the Epistars add anything, maybe they are fine. But I know Osram puts out quality (I've used their products in residential/commercial building). Sylvania/Osram stuff works like it's supposed to.
Click to expand...
I suspect it may be a slight difference in the efficacy of the diodes.
The Osrams may be a bit more efficient at generating 660nm photons.
 
You must log in or register to reply here.
Top