The Chinese Quantum Board Knock Off Builds

[Rocket Soul]

This thread has been really valuable for me in my projects and I have a lot of respect for you and all you've done to try to help people here.
My panels are alibaba Kingbrite. I've had very good luck with the gear I got from them. Both the boards and the meanwell drivers.

I have a mixture of different versions of their QB288 boards.
At first, I resisted getting the "waterproof" versions because I didn't want to lose .001% light output (or whatever it is) but in later orders, I always went for it.

I think I've seen you on ICmag now. I wasn't surprised as I noticed this thread went idle.
Most people over there don't know how much great info has been shared here in this thread. I'm sure you are gonna generate some epiphanies over there

Silicone bubbles over the diode sounds right. I knew it was a soft compound which made me worry about what I used to clean. I'll let you know how the alcohol works.
Thanks brother :tiphat:

Yeah im there aswell, theres a lot more going on there in general. Ledsection in total is very low on news and peeps dont diy anymore as it seems like the biggest interest was cheaper leds which is readily available by now. Me and a few die hards still diy. Also icmag has a lot more people close to where i live and and some very active euro/international sections.

Thx for all the kind words - i try to learn and share and help, just like those who came before me, and its nice to see others doing the same

By now our grow has several generations of leds, from fotops thru to uvb supplementstion, and im getting closer and closer to find something i feel can be seen as a perfect combo of yield, quality, potency and that subjective "growers feel" category: when the lights are just a breeze to work and grow with (like cmh) and you always like the growth pattern, smell and how the plant looks, when everything comes into place.

I was pretty much sure i had it down but then i saw some indications it could be done even better so im back again looking at papers and diagrams for some final tests to chase those final points on quality and yield before i make some custom led gear to hopefully take to market. Its damn close to the GLA gear which i also have, which may in the end even come out on top of my own faves, id recommend them to anyone.

Currently im not looking at efficiency in the same way anymore - not the absolute cardinal property of a light, it only determines how many watts you need to get conditions for good. If youre over 2.5 its close enough that spectrum plays into it more than efficiency: a really well designed flowering spectrum can change your results up around 10-20% from the looks of it. That takes those 2.5ppf /w up to be competitive with a 3/w light of more standard spectrum. The same thing that makes for good efficiency is what makes some led weed a bit more boring in quality, and all the growlight market is chasing the same thing. And in any case you can over come a slightly lower efficiency so easily, you just have to use a little more watts. 10% doesnt seem a lot for me if youre able to hit the full register of what your grow can do. But still a bit further to go, everytime i get close to ordering either me or my partnered growbuddy have a cashflow problem and cant get the order in, or i see something new and shiny i wanna try and include.
When i get it sorted ill drop a line and some pics here.

 

[Cptn]

... im getting closer and closer to find something i feel can be seen as a perfect combo of yield, quality, potency and that subjective "growers feel" category: when the lights are just a breeze to work and grow with (like cmh) and you always like the growth pattern, smell and how the plant looks, when everything comes into place.
I was pretty much sure i had it down but then i saw some indications it could be done even better so im back again looking at papers and diagrams for some final tests to chase those final points on quality and yield before i make some custom led gear to hopefully take to market. Its damn close to the GLA gear which i also have, which may in the end even come out on top of my own faves, id recommend them to anyone.
When i get it sorted ill drop a line and some pics here.

Hell yeah brother.
After all these years of spectrum experimentation, it does seem like we should be on the brink of another "level up" of understanding how to use these lights to best approximate nature.
Looking forward to your revelations.

 

[Rocket Soul]

Hell yeah brother.
After all these years of spectrum experimentation, it does seem like we should be on the brink of another "level up" of understanding how to use these lights to best approximate nature.
Looking forward to your revelations.

Things are moving along
ive got my design finished for a 3 foot strip with some nifty features. Awaiting the 3D mock up for now. Basic features are 420 diodes, 12 of them monos in series of 3, 840x30mm. This fall i will start with some prototypes in order to lock down a good led mono supplier. Then some final testing with my test partners: even though i feel i have solid results with my main spectrum im fairly sure that there are a few decimal points to be gained by tweaking it a little further. Also need to design appropriate supplemental channels to go with the tweaks.

 

[Rocket Soul]

Heres the 3D mock up. Ive set up my strips so they can take a standard ledstar pcb mounted on top for any type of supplement you could wanna add. Already have a provider for 4up ledstars so you can get a nice composed supplementation channel. One of the diy-iest strips ive ever seen

The mock up: is not the greatest; hard to spot those mono clusters.