The Chinese Quantum Board Knock Off Builds

[Airwalker16]

Wait... Is that a depression to the base where there's just no fins and logo printed? I thought that was the back of the board.
It's just a circle area without fins huh

 

[Airwalker16]

E

Bought my HLG 240 V2 with MARCUD light boards last week, not a bad deal for $150 delivered (Samsung 301B chips).
View attachment 4493704

What red diodes are these??

 

[coreywebster]

Wait... Is that a depression to the base where there's just no fins and logo printed? I thought that was the back of the board.
It's just a circle area without fins huh

Looks like the back of the board when zoomed in.

 

[Airwalker16]

Looks like the back of the board when zoomed in.

Nah, the other hole to the right shows the back of the WHITE board. That's just a part of the heatsink without fins. Base is there, just no fins. Just for a logo. . . So lame.

 

[Moflow]

I think the hole below goes right through as there appears to be something white it's resting on.

2

 

[bigmikey86]

What's with the enormous holes drilled out in the heatsink ALL THE WAY through?

Speed holes.

 

[sarahJane211]

Marcud LED is the back of the board, the centre and corner holes are all the way through.
Corner holes for the mounting bolts (that I haven't bothered to use), maybe the centre is an alternative mounting hole.
This is the only info on the board ......... apart from the printing on the parts.

 

[Airwalker16]

Marcud LED is the back of the board, the centre and corner holes are all the way through.
Corner holes for the mounting bolts (that I haven't bothered to use), maybe the centre is an alternative mounting hole.
This is the only info on the board ......... apart from the printing on the parts.
View attachment 4494164

Marcud LEd print is on the back of the BOARD or the HEATSINK?

 

[sarahJane211]

Marcud LEd print is on the back of the BOARD or the HEATSINK?

Board.
I'm really pleased with this light, and the plants really seem to like it.

 

[Airwalker16]

So yo

Board.
I'm really pleased with this light, and the plants really seem to like it.

You're telling me, before the heatsinks is put on the board, there's just a huge 2.5-3" completely through hole in the middle of it?

 

[bigmikey86]

I think Meijiu and a couple other companies do it as well with their heat sinks. It’s most likely one factory milling all the heat sinks for multiple companies. Definitely creates a bit of a hotspot on the board when run hard, but hey! Gotta engineer in some planned obsolescence some how.

 

[Airwalker16]

Ugh, that they would sacrifice that much of the whole thing, for a logo. So irritating. Gotta be 15-20%

 

[sarahJane211]

I think Meijiu and a couple other companies do it as well with their heat sinks. It’s most likely one factory milling all the heat sinks for multiple companies. Definitely creates a bit of a hotspot on the board when run hard, but hey! Gotta engineer in some planned obsolescence some how.

It's not hot, neither the heatsink nor the board under it.
Maybe 3c above the room temperature, air temp 27.9c, h/s temp 29.7c, board temp 31.5c

 

[Chip Green]

In honor of the title of this lengthy, and popular thread, I declare this idiom aloud.

"Imitation is the sincerest form of flattery"

In no way, am I suggesting that any of these boards mentioned heretofore, will not perform their intended function.

What I will suggest, is that, the quote I made, is proof enough to me, why they list their products, with the word "Quantum" or the abbreviation "HLG" in the title.

 

[bigmikey86]

It's not hot, neither the heatsink nor the board under it.
Maybe 3c above the room temperature, air temp 27.9c, h/s temp 29.7c, board temp 31.5c
View attachment 4494350

Oh it’ll still do it’s thing and grow some good looking dope for ya. Just funny the things China does because they think North Americans think it looks “cool”. I’m using China boards and I have zero complaints so far

 

[sarahJane211]

Just funny the things China does because they think North Americans think it looks “cool”.

This board is being marketed to Thai buyers.

 

[bigmikey86]

This board is being marketed to Thai buyers.

Thai, Europe, North American, we’re all brainwashed to respond to marketing. Subliminal things like cool looking logos, different colours and being different than the other guy, even at the cost of logic. You’ll like the boards if they’re what they say they are.

 

[oKiHai]

So I am shopping on Kingbrite and I am torn between 2 models below. the light is for a 2x4 tent for flower. The rep Vivi said the first one is the "newest model" with UV and IR but I believe that I have read somewhere on this thread that the UV chips are not strong enough and/or burn out quickly so it was better to not have those. Does this also apply to the IR chips, are these needed or beneficial? Can anyone tell me help me make the choice as to which would be better? I plan to get either in the 3000k color temp unless otherwise advised.

Samsung lm301h+ CREE XP-E2 660nm+UV+IR qb288 Quantum Board

320w quantum board V3 samsung lm301h with CREE XP-E2 660nm red led grow light


Thanks in Advance!

oKiHai

 

[bigmikey86]

So I am shopping on Kingbrite and I am torn between 2 models below. the light is for a 2x4 tent for flower. The rep Vivi said the first one is the "newest model" with UV and IR but I believe that I have read somewhere on this thread that the UV chips are not strong enough and/or burn out quickly so it was better to not have those. Does this also apply to the IR chips, are these needed or beneficial? Can anyone tell me help me make the choice as to which would be better? I plan to get either in the 3000k color temp unless otherwise advised.

Samsung lm301h+ CREE XP-E2 660nm+UV+IR qb288 Quantum Board

320w quantum board V3 samsung lm301h with CREE XP-E2 660nm red led grow light


Thanks in Advance!

oKiHai

It all depends on what YOU want out of your light. The “IR” is just far-red (730nm) and I’d suggest you check out the uva/uvb led thread for some good data on the benifits.

If you plan to modify and add spectrums as you go or play with far red EOD treatment in the future I would go with the 301h+Cree 660 so that you can add those spectrums at a later time. If you want to just plug and play without any thoughts for a few years then just go with the 301h+Cree 660+730+uva

just remember that your veg light should have some source of uv light if you plan to use this as just a flower light.

 

[Airwalker16]

You're correct. The real UV diodes worth using cost at least $15-25 per diode. So it's not even real. It's just 385-400nm blue they're claiming is UVA. Get 3000K and the 660nm.