DIY with Quantum Boards

[pop22]

Depends which type driver you have. A 185H-54 will divide the voltage where a 185H-C1400 will give constant voltage. I have 4 QB 304 in parallel on a 320H-C2800.

I could have sworn parallel wiring only divided the current while voltage stays the same, always.

 

[Airwalker16]

Depends which type driver you have. A 185H-54 will divide the voltage where a 185H-C1400 will give constant voltage. I have 4 QB 304 in parallel on a 320H-C2800.

Not True. HLG-185-54 will divide the total Amperage of the driver however many times over depending on the amount of 54V boards/strips. To divide voltage, you'd have to be a board that's 28V. You can multiply voltage by adding more in series though. As 2 54c boards in series would not work on the driver. Because it's a 54v driver. Not a 108v one.
As for your boards, the 304's are 100V ish and your staying there by being in parallel,but each one is getting 700mA.

 

[PJ Diaz]

People always seem to confuse parallel and series.

 

[Airwalker16]

People always seem to confuse parallel and series.

Not I

 

[Lpena007]

These any good?

 

[Airwalker16]

These any good? View attachment 4498813View attachment 4498814

They certainly look like they could be very very useful. What's the wattage draw when plugged in? What Color temp are they? Do you know anything? Please post close up pics of ANY and ALL LABELING.

 

[Strudelheim]

Looking to get 2 of these, can someone explain the difference between these 3 versions? So confused. I just want whichever one is most efficient where I get my most bang for my buck on the main samsung diodes, and don't care about the 660/UV stuff. Looking at the 3K for my bloom room, I will be running a CMH or HPS in between them depending on my heating needs.

ok so this one has the epistar 660nm + UV and IF
It is rated at 175L/watt, makes sense since the UV and IF diodes. Not worth spending extra to get less white light. Im already going with 3K spectrum, and like I said may have HPS running in this room part of the time, and even the CMH is 3100K.

$165 CAD

"496pcs Samsung LM301H+64 epistar 660nm 8pcs uv +8pcs ir"

Rotate Outward/inward Kingbrite 480w Samsung Lm301h Evo Led Grow Light For Indoor Plant - Buy Kingbrite 480w samsung Lm301h Evo lm301h Evo Led Grow Light Product on Alibaba.com

Rotate Outward/inward Kingbrite 480w Samsung Lm301h Evo Led Grow Light For Indoor Plant - Buy Kingbrite 480w samsung Lm301h Evo lm301h Evo Led Grow Light Product on Alibaba.com

www.alibaba.com

This one has just epistar, but why are there only 250 of the samsung diodes! that's half as many. I think they just counted the diodes for the single board instead of the total per shipment of 2 boards. They should stick to one format for easy comparison

$155 CAD

"252pcs Samsung LM301H+72pcs Epistar 660nm"

Cover 2*4' Tent Kingbrite 240w Samsung Lm281b Mix Epistar 660 Uv Ir Qb288 V4 Pcb Boards Horticulture Led Grow Lights - Buy Kingbrite samsung Lm281b kingbrite 240w Product on Alibaba.com

Cover 2*4' Tent Kingbrite 240w Samsung Lm281b Mix Epistar 660 Uv Ir Qb288 V4 Pcb Boards Horticulture Led Grow Lights - Buy Kingbrite samsung Lm281b kingbrite 240w Product on Alibaba.com

www.alibaba.com

ok so this one uses the older LM301b diodes instead of the new LM301H , which is the newer version, but efficiency at this spectrum is apparently not that different? looking at the ppfd map map this one puts out a little less in some areas. I think for an extra $10 thats worth it.

$145 CAD

"504pcs Samsung LM301b+72pcs epistar 660nm"

https://www.alibaba.com/product-detail/Kingbrite-240W-Samsung-lm301b-v2-mix_62018007012.html?spm=a2700.wholesale.deiletai6.3.63b22e8cz7PXRW

 

[Strudelheim]

Thanks a lot guys!

ordered 2 of these

$155 CAD

"252pcs Samsung LM301H+72pcs Epistar 660nm"

Kingbrite 240w Samsung Lm301h 288v3 Quantum Led Board Led Horticulture Grow Lights - Buy Lm301h,Samsung Lm301h,Quantum Led Board Product on Alibaba.com
Kingbrite 240w Samsung Lm301h 288v3 Quantum Led Board Led Horticulture Grow Lights , Find Complete Details about Kingbrite 240w Samsung Lm301h 288v3 Quantum Led Board Led Horticulture Grow Lights,Lm301h,Samsung Lm301h,Quantum Led Board from Grow Lights Supplier or Manufacturer-Shenzhen Kingbrite...

www.alibaba.com

 

[Budzbuddha]

Let us know how long it takes from ground zero

 

[lukio]

LM301b diodes instead of the new LM301H

its the exact same diode. if they say otherwise theyre lying or misinformed

 

[Gond00s]

don't they charge u more for the h version and say their horticultural grade? I know their the same just Im pretty sure some shitty company's do that

 

[Strudelheim]

its the exact same diode. if they say otherwise theyre lying or misinformed

What do you mean it is the same?

I thought the one with the H is the new one, the B is the older one.

Samsung Sets New Photon Efficacy Level in White LED Packages for Indoor Farms

High photon efficacy allows more light to reach plants for healthier growth and enables indoor farms to save on energy costs

news.samsung.com

 

[Strudelheim]

don't they charge u more for the h version and say their horticultural grade? I know their the same just Im pretty sure some shitty company's do that

I bought with the H, the board is also V3. overall it cost an extra 3.5%. The light output is better if you look at the ppfd chart of both of them.

https://www.reddit.com/r/microgrowery/comments/bhg1lu

 

[lukio]

What do you mean it is the same?

I thought the one with the H is the new one, the B is the older one.

Samsung Sets New Photon Efficacy Level in White LED Packages for Indoor Farms

High photon efficacy allows more light to reach plants for healthier growth and enables indoor farms to save on energy costs

news.samsung.com

nah, bro. Greengenes explains this here

 

[Gond00s]

nah, bro. Greengenes explains this here

and he went over it very well

 

[lukio]

yeah he's no nonsense is GG

 

[Gond00s]

yeah he's no nonsense is GG

tbh I was just gonna let someone post this and if no one did I would have but a lot of growers that are reputable know about green gene and his amazing advice he gives and his no bullshit allowed policy love it

 

[Strudelheim]

tbh I was just gonna let someone post this and if no one did I would have but a lot of growers that are reputable know about green gene and his amazing advice he gives and his no bullshit allowed policy love it

Yeah no, I actually love green genes, but havent been keepinbg up lately and this was more of a spontaneous no research buying decision.

So what I don't get is this alibaba ppfd chart

 

[Strudelheim]

and whats up with this official release statement direct from samsung... This 3.10 Micro Moles talk?

Samsung Sets New Photon Efficacy Level in White LED Packages for Indoor Farms

High photon efficacy allows more light to reach plants for healthier growth and enables indoor farms to save on energy costs

news.samsung.com

 

[lukio]

dont listen to alibaba. if you want legit boards then shop with HLG.

you should probs post in the China knock off thread, dude.