The Chinese Quantum Board Knock Off Builds

bk78

bk78

Well-Known Member
salmonetin said:
....all the parts for cheaper than they sell their actual lights....
maybe just a dream...but the led pcb at right price...its possible too...
...the led pcb at normal price (ok not the cheaper option..)...its a dream for diyers...i dont know actual normal prices...
and i dont pretend the company lose ...if they mark a normal price...they have more clients...
...but i understand they only shells pre built lights...and nothing more...for my no problemo too...

maybe in future...we can access a lot of leds pcbs...with the normal price....maybe not economic or not posible with large numbers...but for small quantities or small numbers...normally diyers starting... are a big help...for my pov

but hey....its a crazy world...welcome to the jungle...baby...
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Do you work for free? If so what’s your kind of work because I want free labour from you.

thx
 
Doug Dawson

Doug Dawson

Well-Known Member
salmonetin said:
....all the parts for cheaper than they sell their actual lights....
maybe just a dream...but the led pcb at right price...its possible too...
...the led pcb at normal price (ok not the cheaper option..)...its a dream for diyers...i dont know actual normal prices...
and i dont pretend the company lose ...if they mark a normal price...they have more clients...
...but i understand they only shells pre built lights...and nothing more...for my no problemo too...

maybe in future...we can access a lot of leds pcbs...with the normal price....maybe not economic or not posible with large numbers...but for small quantities or small numbers...normally diyers starting... are a big help...for my pov

but hey....its a crazy world...welcome to the jungle...baby...
Click to expand...
You can get those LEDs just as cheap as that company. Just place your order for half a million of them like they do.
 
UpstateRecGrower

UpstateRecGrower

Well-Known Member
Doug Dawson said:
Well than they were honest with you. Did you expect them to sell you the parts at cost? You do realize they are a business out to make money and not just there to be a wholesaler for small growers?
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Yes of course, but they do sell individual led boards and such.. So no I wouldn't expect to get them at cost but the led strips shouldn't cost more than the whole assembled light with the drivers and heatsinks.. Just like at HLG 4 quantum boards don't cost as much as the assembled light they sell for $1000 lol
 
UpstateRecGrower

UpstateRecGrower

Well-Known Member
bk78 said:
Why would a company that sells only pre built lights sell you all the parts for cheaper than they sell their actual lights?

Entitled much?
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Are you mildly retarded or just have trouble reading? I only wanted the led strips, no heatsinks or drivers.. I asked if they sold them separately they said yes. Obviously all the parts separately should and would cost more than the assembled product, read much?
 
bk78

bk78

Well-Known Member
UpstateRecGrower said:
How much does Rita want for the lm561c boards? You can buy lm561c strips 288 diode from digikey, that’s what I just did.. well actually I take that back I was going to get the 288 diode strips (4’) and I ended up getting the 144 diode (2’), 160 of them cost 2550 after everything all said and done with 2 day shipping..
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Any pics of all 160 built and set up 4 months later since Rita couldn’t provide you 100 yesterday?
 
Dosmokethereefa

Dosmokethereefa

Well-Known Member
k0rps said:
Meijiu's listings are kind of strange.. really. Having like 8 companies on Ali and multiple sales people complicates the situation even more, ime.

Been in contact with a salesperson, was quoted for a 240w, claiming their best price. Went searching and found the same model, for 25% of the quoted price!

When inquiring, she said its not possible, the company cannot go lower than the official price she's given, "the best price". Showed her a screenshot of completing an order. She asked for the link, link was sent.

After a few minutes she messages saying the listing price was a mistake! Messaged the salesman of the cheaper listing, she also claimed it to be a mistake and refered to the salesperson already being dealt with saying she'd would give "the best price".

The listing price r changed within minutes, leaving questions unanswered.

Left the situation with some distrust about the company's prices & salespeople. Even with the mixed up prices, their products are still half price of name brands.. but the experience so far with salespeople has been a turn off.

Has anyone had a similar experience??
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Yes mate i have eventually i stuck with the 1 that answer me fastest and appearred to be genuine Tiny Wu tell her R Cox told u to ask for her i would stick 2 meiju i and plenty of others already have them and rate them:D
 
k0rps

k0rps

Well-Known Member
Dosmokethereefa said:
Yes mate i have eventually i stuck with the 1 that answer me fastest and appearred to be genuine Tiny Wu tell her R Cox told u to ask for her i would stick 2 meiju i and plenty of others already have them and rate them:D
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Gonna be cruisin' w some boardz soon, on their way! Should be good for a bit until hungry again ~ then going for them F8 snack bars. Looks tasty af w/ hella diodes.
 
tko2184

tko2184

Well-Known Member
Doug Dawson said:
Well than they were honest with you. Did you expect them to sell you the parts at cost? You do realize they are a business out to make money and not just there to be a wholesaler for small growers?
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So I ran the Meiji boards still have them and want to ask a question I don’t remember first though I have two board 240-250w rated for a 4x4 an ran them shortage last time and it was a little too complicated to get the lights say in the same intensity w the potentiometer they give u, can’t I run these un serie together? I know how to wire but can’t remember if these lights were ok for that?
 
bk78

bk78

Well-Known Member
tko2184 said:
So I ran the Meiji boards still have them and want to ask a question I don’t remember first though I have two board 240-250w rated for a 4x4 an ran them shortage last time and it was a little too complicated to get the lights say in the same intensity w the potentiometer they give u, can’t I run these un serie together? I know how to wire but can’t remember if these lights were ok for that?
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Get a kill a watt meter and dial each light to preferred wattage
 
Rocket Soul

Rocket Soul

Well-Known Member
Moflow said:
@salmonetin

¿El catálogo no está en el sitio web? epistar y diodos uv sin nombre. lo sé, jaja Pero dan buenas lecturas bajo el apogeo. Creo que estos son los bares sobre los que hablaba el hermano Rocket Soul :lol:

2019 Newest 3FT 301B 351H 80W Sunbar 150+5 Grow LED Strip Bar Samsung LED Grow Light for Indoor Garden - Buy 351h led bar, LED Grow light Bar, samsung led grow light for indoor garden Product on R2T Industry (HK) LTD.

2019 Newest 3FT 301B 351H 80W Sunbar 150+5 Grow LED Strip Bar Samsung LED Grow Light for Indoor Garden, find complete details about 2019 Newest 3FT 301B 351H 80W Sunbar 150+5 Grow LED Strip Bar Samsung LED Grow Light for Indoor Garden, 351h led bar, LED Grow light Bar, samsung led grow light for...
www.r2thk.com www.r2thk.com
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tko2184 said:
So I ran the Meiji boards still have them and want to ask a question I don’t remember first though I have two board 240-250w rated for a 4x4 an ran them shortage last time and it was a little too complicated to get the lights say in the same intensity w the potentiometer they give u, can’t I run these un serie together? I know how to wire but can’t remember if these lights were ok for that?
Click to expand...
Either get a PWM dimmer and connect to both drivers, if you want to do resistive dimming you need a 50k ohm dimmer pot, the 100k ohm dimmer you have currently will only work for one driver.
 
Rocket Soul

Rocket Soul

Well-Known Member
tko2184 said:
Would this work

InduSKY Upgraded LED Dimmer PWM DC 12V-24V 30A Lighting Dimming Controller Single Channel + 5M 22AWG Extension Cable for Led Strips 3528 5050 Single Color + DC 12V Plugs Female Connector - - Amazon.com

InduSKY Upgraded LED Dimmer PWM DC 12V-24V 30A Lighting Dimming Controller Single Channel + 5M 22AWG Extension Cable for Led Strips 3528 5050 Single Color + DC 12V Plugs Female Connector - - Amazon.com
www.amazon.com
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I'm pretty sure it's supposed to be 10V PWM, check the datasheet or the 3 in 1 dimming thread
 
Cptn

Cptn

Well-Known Member
Smokey_Treats said:
Settle down. We are all here for the same reason.
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Dang Smokey :-)
Starting at the beginning of a 3 year old, 228 page thread and replying to a post on the first page . . . you are serious ;-)
All jokes aside, I'm impressed but you may want to skip forward a bit, or just not post to anything you read until 2020'ish . . .

Some great info and analysis in here about the gear available on alibaba.
Since 2018, strategies on using panels of Mid-power diodes (like HLG QBs) to grow canna have evolved quite a bit.

I have to admit, this thread has slowed down a LOT in here the last 4 months or so.
By the time you read this stuff, you'll feel very comfortable buying some kingbrite, meijiu, or a few other brands gear. Hopefully you'll understand which diodes cost more and why.
You should also have a good understanding of different driver types/brands and an idea of how many watts sq/ft you wanna run over your space.
Maybe you'll even look at some youtube videos by Dr. Bruce Bugbee?

All the best sir.
 
N

Northwood

Well-Known Member
Cptn said:
I have to admit, this thread has slowed down a LOT in here the last 4 months or so.
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According to some, this should be the busiest thread on Riu due to all the problems and fires and failures the buyers of these cheap Chinese made knock offs must be having. Maybe they aren't as bad as what some think I guess. My 240W v4 Kingbrites are doing fine. Nothing to report. Time for quiet again. Lol
 
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