The Chinese Quantum Board Knock Off Builds

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maddmango

Well-Known Member
DukeFluke said:
Is it worth buying the boards with the heat sinks or getting the sinks local?

And, sorry to ask again, but howthe feck do I find what I'm looking for on Digikey? There are thousands of items come back if I type in a generic term loike heat sink or linear strip... is there a way I can narrow it down to the parts we're mostly using here?

Nice one
Click to expand...
so you wouldn't get the heatsinks from Digikey, your better off sourcing them from heatsink USA. It all depends on if your willing to pay the shipping charges from china for the added weight of the heatsinks.

The only parts you should purchase are the LED Modules and the LED Drivers from Digikey and the best way to find them is to search the part number. What are you looking to purchase?
 
Cptn

Cptn

Well-Known Member
no im
Labradorweed said:
Is there any problem with ordering quantum boards from China when it comes to tariffs? I read somebody had to pay UPS about 80 bucks for their shipment? This was not in 2020 though and this would be shipping to USA
Click to expand...
No import duty as long as value declared is less than $800.
The seller puts the value on the package. Discuss it with them when getting a quote
 
D

DukeFluke

Well-Known Member
So what's the verdict? get them fom Digikey (bear in mind I'm aleady in the UK) or alibaba?

Oh and another 2 quick Qs...

1. There's no reason I can't run multiple boards of different arrangements, is there?

I don't want them all to have the FR and IR, want at least every other board to be just LM301B full spec 3000 & 35000

2. I want to run 12 x boards at 100w. I was thinking to put 4 each on a 480 driver. Good idea? Does running them a bit lower reduce the penetration ability of the board?
 
Barristan Whitebeard

Barristan Whitebeard

Well-Known Member
DukeFluke said:
Check these out as well from Diyleduk

https://diyleduk.com/collections/scoper-stripkits/products/scope-70-v2-enhanced-full-spectrum-diy-led-strip-kit-lm301b-red

Where can I find something similar on Digikey to custom make my own?
Click to expand...
This is about the closest match to the Scope kit strips that you will find on Digikey.


SL-B8R5C9H2AWW Samsung Semiconductor, Inc. | Optoelectronics | DigiKey

Order today, ships today. SL-B8R5C9H2AWW – LED Lighting COBs Engines Modules LED Module series White, Cool Linear Light Strip from Samsung Semiconductor, Inc.. Pricing and Availability on millions of electronic components from Digi-Key Electronics.
www.digikey.com www.digikey.com

They're made with LM301H and LH351H 660 nm deep red diodes. They sell 1 and 2 foot strips. Just note that the CCT of these strips is 5390k.
 
D

DukeFluke

Well-Known Member
So is that it for Digikey?

Baba the best source for them then it seems. Would I be right in thinking that?

Looking to pull the trigger on these Asap now. Need to just get it done but still wanna avoid that last chance of buyer remorse because I haven't covered all the bases.
 
Airwalker16

Airwalker16

Well-Known Member
DukeFluke said:
So is that it for Digikey?

Baba the best source for them then it seems. Would I be right in thinking that?

Looking to pull the trigger on these Asap now. Need to just get it done but still wanna avoid that last chance of buyer remorse because I haven't covered all the bases.
Click to expand...
Well if it's heatsinks you want, Bava, NOT Baba as in Alibaba, although they are on Alibaba, has some pretty great options for heatsinks.
 
Cptn

Cptn

Well-Known Member
DukeFluke said:
Can't find any heatsinks in the Bava shop?
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I couldn't find any on bava . . .
How about:
szmeijiu.en.alibaba.com

Alibaba Manufacturer Directory - Suppliers, Manufacturers, Exporters & Importers

Alibaba Manufacturer Directory - Suppliers, Manufacturers, Exporters & Importers
szmeijiu.en.alibaba.com szmeijiu.en.alibaba.com
or
kingbriteled.en.alibaba.com

heatsink - search result, Shenzhen Kingbrite Lighting Co., Ltd.

Search results for heatsink from Shenzhen Kingbrite Lighting Co., Ltd.. Get exactly what you're looking for.
kingbriteled.en.alibaba.com kingbriteled.en.alibaba.com
 
D

danion

Member
I am looking for a test board with samsung leds for 1x1m / 3x3', so far I have been using leds cree cxb3590 and citizen horticulture, with very good results. From what I have seen there are quite mentions about meijiu, kingbrite, bava...
Do you recommend any other manufacturer?
My idea was some 480w kit with 4 boards or 2 with 240w, I don't want uv or far red, since I would supplement it, should I choose the lm301b? Which is the better brand for 660nm? I've seen lots of boards with epistar, osram and cree components
 
budcacto

budcacto

Member
Good for all friends. I'm a few days away looking for a quantum board for my crop. Reading some pages of the topic, I saw that you guys usually pick up on alibaba with king brite or meiju store. I didn't see them talking about the driverless plates. I found something on aliexpress, in the YXO store (i also did not see comments about this store around here). The seller assures me that the diodes are samsung,and the far red are cree.
Does anyone have anything to report on this?
1587564615771.png
1587564666018.png
would like to know more about the influence of UV IR on plants, is there any topic where I can read about it?
 
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D

danion

Member
danion said:
I am looking for a test board with samsung leds for 1x1m / 3x3', so far I have been using leds cree cxb3590 and citizen horticulture, with very good results. From what I have seen there are quite mentions about meijiu, kingbrite, bava...
Do you recommend any other manufacturer?
My idea was some 480w kit with 4 boards or 2 with 240w, I don't want uv or far red, since I would supplement it, should I choose the lm301b? Which is the better brand for 660nm? I've seen lots of boards with epistar, osram and cree components
Click to expand...
I reply with candidates that I have seen
MEIJIU

This product is no longer available.

This product is no longer available.
www.alibaba.com

YUANHUI

This product is no longer available.

This product is no longer available.
www.alibaba.com

KINGBRITE

This product is no longer available.

This product is no longer available.
www.alibaba.com

KORAY

This product is no longer available.

This product is no longer available.
www.alibaba.com

the price is very similar, what if the shipping varies, better to choose boards with 660 cree/osram than epistar? or take epistar and supplement with 660nm bars?
 
D

DukeFluke

Well-Known Member
The reason I was looking predominantly at the kingbrite is because of a few reports of dodgy customer service from Meijiu regarding warranty or failed lights.

I'd go with the thinner sinks if I know they'll send me out some new strips or boards if one or two of them turn out to be defective.
 
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