Domzy4
Member
Are you running them in a 4x4?I'm running a 4 board QBN304 light @85 watts a board, and I can't even imagine running them harder than that! IMO you run them @125 watts each, you might want to seal your room and run CO2!
Are you running them in a 4x4?I'm running a 4 board QBN304 light @85 watts a board, and I can't even imagine running them harder than that! IMO you run them @125 watts each, you might want to seal your room and run CO2!
Does a samsung chip have any markings or indications that it is in fact a samsung chip?
Might just be the quality of the pics, but the first board appears to have slightly differently-shaped diodes? More square, less rectangular? But again, that may just be the pics.huh?
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View attachment 4057569
It's literally the exact same board.
You see the font that "HorticultureLightingGroup.com" uses? That is the default font used by Chinese manufacturers when you want to "OEM" something.
But hey, I'm certainly open to be corrected. If someone were to perhaps point out the actual manufacturer I'd be happy to be corrected.
huh?
View attachment 4057568
View attachment 4057569
It's literally the exact same board.
You see the font that "HorticultureLightingGroup.com" uses? That is the default font used by Chinese manufacturers when you want to "OEM" something.
But hey, I'm certainly open to be corrected. If someone were to perhaps point out the actual manufacturer I'd be happy to be corrected.
Are you running them in a 4x4?
Im waiting for my 2 304 qbs for my 2.7x2.7 tent... Its gonna be a big upgrade from a crappy 250 hps... I can hardly wait to see the light difference...yes, in a 4x4 tent. Hell, you'd go blind int here...lol
There is a guarantee, alibaba has a return policy. I've purchased other things before and have returned them.just check right here on RIU, we even had some douche come in this thread to promote them. There is NO guaranty they are real samsung chips. Don't you find the price a bit odd? Maybe someone in this thread remembers this debacle, if so, fill this guy in.
But as I said, I do hope they work well for you, seeing you already spent the money.
Oh, and good luck with warranty issues........
Not sure what an NDA would do for that manufacturer or reseller. Only that they cannot sell the OEM branded boards. All the manufacturer needs to do is not stamp the OEM markings and sell as generic.I'm not sure that you bought from the same manufacturer, I did inquire with one manufacturer whom stated that he had a signed nda agreement with another customer that he can not sell 288 or 304 piece pcb boards but he was however willing to sell me 336 piece boards for 35/ea plus shipping.
Might just be the quality of the pics, but the first board appears to have slightly differently-shaped diodes? More square, less rectangular? But again, that may just be the pics.
Edit: another difference I see is the spacing between the Molex connectors and the first row of diodes. More distance on the HLG board.
Well, if they are indeed fake, alibaba has a return policy they will need to honor, or I will be getting these for free after a dispute with my credit card company.Ahh and of course all the rumors of Chinese counterfitting anything worth mnore than a dollar are wrong then..... ITS A FAKE
Yea, there is absolutely no question these boards are not MADE in the USA. No doubt whatsoever.I remember reading that they quantum boards were designed in the USA, not necessarily made in the USA. And in my post above yours I have spoke with a manufacturer on alibaba that has an agreement with another customer that forbids them to sell 288 or 304 boards, so I'm guessing that's their manufacturer?? ..unless there's some other company out there selling 288 and 304 boards, and they could have switched to a manufacturer in the US
Great question. That's something I'm looking into. I'm sure there is. I bet with some sort of magnifying glass you can look at markings on the diode itself.Is there a way to tell if they are not actually LM561C diodes?
Yea, there is absolutely no question these boards are not MADE in the USA. No doubt whatsoever.
So that then leaves us with who is making them and who is making fake versions of them. And/or who is claiming their are fake versions being made.
The way manufacturing works in HK/China is specific area are specific to markets. There is a lighting district, a paper district, a garment district, a toy district, etc etc.... You may have 5 manufacturers in the same area that have the ability to make the same PCB... but that's not to say some are shady fuckbags and try to burn people. It happens.
i may get 2 240s and a couple 185s - thanks for the advice...Nah, run them with the 240 and just dim it if need be.
Only the 288, last I heard.You would know that QB boards are being assembled in US as well.
Not to bust your bubble but those are knock offs of our products. You may want to check the authenticity of the LEDs.
That may be. But both the PCBs and the diodes are made in China. No disputing that.It would help you to read the entire thread instead of just writing what you think the situation is. The real manufacturer was already named and confirmed earlier in this thread. It is not the company you linked.
You would know that QB boards are being assembled in US as well.
What makes you say that?Not to bust your bubble but those are knock offs of our products. You may want to check the authenticity of the LEDs.
Yea, there is absolutely no question these boards are not MADE in the USA. No doubt whatsoever.
So that then leaves us with who is making them and who is making fake versions of them. And/or who is claiming their are fake versions being made.
The way manufacturing works in HK/China is specific area are specific to markets. There is a lighting district, a paper district, a garment district, a toy district, etc etc.... You may have 5 manufacturers in the same area that have the ability to make the same PCB... but that's not to say some are shady fuckbags and try to burn people. It happens.