The Chinese Quantum Board Knock Off Builds

[fragileassassin]

To get your 288 V2's up to 120w are you guys using 48v CV drivers or 54v CV drivers, I know the MW drivers push a little more, so would the 48v CV driver get to 49.5v+???
Drivers...
View attachment 4258898
QB288 V2...
View attachment 4258897

Dimming spec on the 48 says it gets up to 51.x volts so maybe

 

[ChiefRunningPhist]

Can u tell me if I can hook 2 folux 288s or 4 of the single boards up to the meanwell driver in picture? And do u think that 8 single boards in all run by two 240 meanwells in all is enough power and light for a 4x4 My other option is to run 3 of those meanwell drivers each on a folux kit(288s) but I would like to take one driver and kit to use for veg. Im planing on buy some more 288s just boards
I’m looking at my other options cause I’m realizing now I should have gone about my purchase a bit differently.
Comments from anyone else that has info is also appreciated hope fully it makes since thanks

Most people are shooting for 30-35w of high quality LED per ft2. So 240w × 2 = 480w. 480w ÷ 16ft2 = 30w/ft2 and is the low end for flowering with LED but do-able according to the math.

I have 3 kits
So in all 3 drivers and 6 boards (Six boards as in each board is 1 foot by about 7 inches) having a lot of trouble explaining that but basically three kits has three drivers three dimmers and six boards (I got the separate ones that are not attached or else I would say 3 boards hope That makes sense also sorry if my explanation is obvious but for some reason having difficulty explaining. help is appreciated thank you

These your supplies???...
- (6) 288
- (6) heatsinks
- (3) 240h 48b
- (3) dimmer switches

Again, shooting for (30-35w)/ft2 at least, but if you have the power I'd go for (40w)/ft2, and it seems you have enough power for that (240w × 3 = 720w ; 16ft2 × 35w/ft2 = 640w) .

With 3 kits you could dim the drivers down to 210w/each (640 ÷ 3 = 213w) and run (2) boards on each driver. That's about 105w per board and you're still getting the maximum amount of light in a 4'×4', or 16ft2.

If you only want to run 4 boards per tent, then just crank the drivers on max and use the 4 boards. You'll get more yield from using 6 boards @ 105w, than 4 boards @ 120w each. If you're not wanting to split up your boards between 2 rooms, ie, use some for a veg tent and use some for a flower tent, then I'd recommend using all 6 in the 4'×4' for a bigger yield.

 

[ChiefRunningPhist]

Anyone see these yet?

Here i introduce to you for full spectrum for indoor plant and Greenhouse .

Attach the spectrum for reference .

QB-272pcs 120W led grow board kit:

Dimension:165mm*185mm*1mm

PPF : 1100 µmol/s

Efficacy : 2.30 µmol/J

LED quantity:

LM301B 4000K: 160pcs;

LM301B 2700K:88pcs;

Cree XPE 660nm: 14pcs;

Cree XPE 730nm: 2pcs;

Epistar UV 380nm:8pcs.

Color:3000k;

CRI>80;

Warranty: 3 year.

Lumen: 160lm/w.

Those look legit, where you find those?

 

[ChiefRunningPhist]

Can i run 5 288 301b off a hlg 600 48a.

Dimming spec on the 48 says it gets up to 51.x volts so maybe

@Randomblame also..
Would you recommend the 54a driver instead?

 

[fragileassassin]

Would you recommend the 54a driver instead?

If u want to run v1 boards with the 561s as hard as possible. The 54 looks like it would be a better option, but I'm not really sure about how that would work out with how the constant current drivers work.

I'm going to run 2 in series on 240h-c2100
a 320-c2800 for 2 is the best option for full power imo

 

[WeedSexWeightsShakes]

Those look legit, where you find those?

Message on alibaba but here they are
Check out this product on Alibaba App shenzhen led grow light HLG V2 Quantum Board led grow light with samsung lm301b and CREES xpe 660nm 730nm
https://f2rq3.app.goo.gl/?link=https://app.alibaba.com/dynamiclink?touchId=60828733990&type=product&schema=enalibaba%3A%2F%2Fdetail%3Fid%3D60828733990%26ck%3Dshare_detail&ck=share_detail&shareScene=buyer&apn=com.alibaba.intl.android.apps.poseidon&ibi=com.alibaba.sourcing&isi=503451073&amv=69

 

[ChiefRunningPhist]

If u want to run v1 boards with the 561s as hard as possible. The 54 looks like it would be a better option, but I'm not really sure about how that would work out with how the constant current drivers work.

I'm going to run 2 in series on 240h-c2100
a 320-c2800 for 2 is the best option for full power imo

I just recommended the 54a to @BIANCAADA6 and wanted to make sure I wasn't steering him wrong as I've never run 288 V2.

 

[ChiefRunningPhist]

Message on alibaba but here they are
Check out this product on Alibaba App shenzhen led grow light HLG V2 Quantum Board led grow light with samsung lm301b and CREES xpe 660nm 730nm
https://f2rq3.app.goo.gl/?link=https://app.alibaba.com/dynamiclink?touchId=60828733990&type=product&schema=enalibaba%3A%2F%2Fdetail%3Fid%3D60828733990%26ck%3Dshare_detail&ck=share_detail&shareScene=buyer&apn=com.alibaba.intl.android.apps.poseidon&ibi=com.alibaba.sourcing&isi=503451073&amv=69

I might try a couple, thanks man


248 lm301b (mixed spectrum)
+ 8 UVB
+ (2) 730nm
+ (14) 660nm


I like the UVB..


You ever worked w UVB diodes? Normally cheaper to do the reptile bulbs, but this looks ok huh???

You bought any?

 

[WeedSexWeightsShakes]

I might try a couple, thanks man


248 lm301b (mixed spectrum)
+ 8 UVB
+ (2) 730nm
+ (14) 660nm


I like the UVB..
View attachment 4258930

You ever worked w UVB diodes? Normally cheaper to do the reptile bulbs, but this looks ok huh???

You bought any?

I haven’t heard anything about them. Just thought they looked interesting. Wonder if the uvb diodes would even help much? If they seem decent I’d like to try em lol.

 

[Labrador weed]

To get your 288 V2's up to 120w are you guys using 48v CV drivers or 54v CV drivers, I know the MW drivers push a little more, so would the 48v CV driver get to 49.5v+???


Drivers...
View attachment 4258898
QB288 V2...
View attachment 4258897

Wish I could help you but I’m very much a noob in this still

 

[Rocket Soul]

Wish I could help you but I’m very much a noob in this still

Meanwell hlgXXX-48A will adjust up the voltage, datasheet got the specific numbers. Generally the lower powered drivers adjust up more: hlg185h-48A went up to 53 from the one we tested. A type driver have arjustable voltage and onboard, down to 50% dimming. Very handy. But if you ever wanna control dimming off board, thru bluetooth, wifi or just a proper on the wall dimm for all your lights, then you want b-type, but it has no voltage adjustment.

 

[Labrador weed]

Meanwell hlgXXX-48A will adjust up the voltage, datasheet got the specific numbers. Generally the lower powered drivers adjust up more: hlg185h-48A went up to 53 from the one we tested. A type driver have arjustable voltage and onboard, down to 50% dimming. Very handy. But if you ever wanna control dimming off board, thru bluetooth, wifi or just a proper on the wall dimm for all your lights, then you want b-type, but it has no voltage adjustment.

So if you have the driver A type is there a way to know that you’re at say 25% power or 75%?

 

[Rocket Soul]

So if you have the driver A type is there a way to know that you’re at say 25% power or 75%?

They dont go to 25, they only go down to 50%. And its not very acurate between 50 and 100, just sort of a screw in a hole on the driver, you need a tiny screwdriver and being able to grab your driver comfortably.

 

[ApfelStrudel]

They dont go to 25, they only go down to 50%. And its not very acurate between 50 and 100, just sort of a screw in a hole on the driver, you need a tiny screwdriver and being able to grab your driver comfortably.

True to some degree. Say I get me a 48V driver and have a 48V board. Now I can turn that driver down to 50% of the nominal voltage which is 24V. How much current is gonna 48V board pull at 24V?

 

[fragileassassin]

View attachment 4259189

True to some degree. Say I get me a 48V driver and have a 48V board. Now I can turn that driver down to 50% of the nominal voltage which is 24V. How much current is gonna 48V board pull at 24V?

The 288s have an operating voltage of 47-52v @47v they only push 23w

 

[ApfelStrudel]

View attachment 4259189

True to some degree. Say I get me a 48V driver and have a 48V board. Now I can turn that driver down to 50% of the nominal voltage which is 24V. How much current is gonna 48V board pull at 24V?

Scrap that post, i mixed some shit up.

 

[ApfelStrudel]

The 288s have an operating voltage of 47-52v @47v they only push 23w

Although I posted some bullshit in that post it still applies to some degree if you use the 48 driver since the adjustable voltage range is 43-53V and at 43V the current pulled will be so low those chips probably barely light up.

 

[fragileassassin]

This is a big problem with the A type drivers in a lot of cases IMO. you have a 25v adjustment range on your driver, but all of your boards dimming is done in a 5v range. So you really have to fine tune that little screw.
Much easier to use a digital 10v dimmer on a B type.

 

[ApfelStrudel]

This is a big problem with the A type drivers in a lot of cases IMO. you have a 25v adjustment range on your driver, but all of your boards dimming is done in a 5v range. So you really have to fine tune that little screw.
Much easier to use a digital 10v dimmer on a B type.

Mine has 2 screws. For voltage and for current limiting. It's fiddling alright tho.

Best run it wide open

 

[ChiefRunningPhist]

Can i run 5 288 301b off a hlg 600 48a.

Yes that driver will work!