DIY with Quantum Boards

[LarsVegasNirvana]

Looks like you'd get better air flow if you don't twist it.

 

[ttystikk]

This pic doesn't begin to do them justice;

 

[dandyrandy]

This pic doesn't begin to do them justice;
View attachment 3856319

How many watts? I'm looking at 8 at 100w each.

 

[ThaiBaby1]

A manly man would run them at 8x150w to cover a 4x4

 

[Mellodrama]

I was trying to ascertain that if all variables being the same, airflow ambient temp thermal resistance etc;
if i use a qb running at 75 watt, with the heat sink on robins website and another with the same material/anodised et al except double the thickness and/or width, will the thicker sink cause the lights to run cooler?

I'm sorry, taita, I still don't understand what you're proposing. You wrote: "with the heat sink on robins website and another with the same material/anodized..." Your application of the word "and" makes me think that you're describing a combination of sinks on one QB?? But the last part of your sentence sounds to me like you're describing using a thicker sink instead of robin's sink, so I'm confused.

If you're talking about replacing robin's sink with a thicker sink, there's a strong possibility it would pull more heat away from the QB. If the metallurgy, shape, finning etc. are all at least as effective as robin's. And it's not warped or uneven.

If you're describing some sort of combination of sinks on one QB, then it'd be helpful to explain in more detail what you have in mind.

 

[Stephenj37826]

A manly man would run them at 8x150w to cover a 4x4

Lmao

 

[sixstring2112]

i havent heard the word metallurgy since the days of knights and merchants lol.

 

[Mellodrama]

For boards in different batches it is best to mount boards in series to avoid issues. Note that only max 2 boards in series.

thanks for getting this important info out there. It would be helpful to see a quick review of some of the more popular serial driver recommendations just to get everyone up-to-speed.

 

[sixstring2112]

This pic doesn't begin to do them justice;
View attachment 3856319

you right,it makes them look as dim as a candle .

 

[ChaosHunter]

you right,it makes them look as dim as a candle .

Yea don't turn one on while looking at it, you will see stars lol. They are insanely bright.

 

[pop22]

no, that was alchemy..........

i havent heard the word metallurgy since the days of knights and merchants lol.

 

[ThaiBaby1]

i havent heard the word metallurgy since the days of knights and merchants lol.

Its just a pigment of your imagination.

 

[MeGaKiLlErMaN]

This pic doesn't begin to do them justice;
View attachment 3856319

Please map it if you have the time

 

[robincnn]

Coming Soon 21st Dec

90 Watt Single Board kit for $149 + Shipping
Quick and easy DIY Lamp Kit

Includes
1) 1x QB304 Board
2) 1x Pre drilled Heatsink
3) HLG-80H-C700 Meanwell Driver
4) Screws/ Hanger Clips/ Power cord/ Wire/Wago

 

[robincnn]

Using a 620ma Generic Chinese driver in 2x2 Veg/herb tent

 

[robincnn]

Good to know, thank you!

will an HLG-185H -c1050b drive 2 boards? I see by spec its a bit over voltage

185H-C1400 will work in parallel or 185H-C700 in series.
Use 240H-C1050 instead.

 

[ttystikk]

Please map it if you have the time

?

 

[robincnn]

Would it be possible to series diodes (.6 v drop per junction) in series with a board with lower forward voltage. I've done this with 7805 regulators in the ground leg to change the voltage out. It may take several in series. Possibly mark boards for future reference?

Good idea i will consider using a sharpie to write down the cold board voltage at test current. But at what current......The test current i use is 65*8= 520ma

yes diode will do a voltage drop and then 2 boards from different batch will work better together. Great Idea. I will test it out, i think i have some 1007 diodes.
Average DIY'ers may not be able to play with diodes and it may be easier for them to just use boards in series.
Sharing for others

 

[robincnn]

With a driver say - HLG 185h 1400b ( from a previous cob build )
How many boards would best utilize this ?
Looking into a 3x3 space or do have to do a 2 driver 2 board build ?

HLG 185h 1400b can do 1 or 2 or 3 or 4 boards

for 3x3 4 boards would be better. 2 or 3 may work but the spread will not be as even as 4

like @BuddyColas suggested

https://www.rollitup.org/t/quantum-boards-grow.927065/
Check this one out for a 3x3

 

[robincnn]

Got all my parts , now to put it all together.
The problem I'm having is how to mount the heatsinks.
I have this nifty track aluminum with a notch cut inside but the heatsink plus LED panel
is too thick to fit in the notch as well as being too crowded.
I was thinking of getting some flat strips of aluminum and mounting it in the notches but
not sure how to attach it to the heatsink. Maybe drill larger holes through both panel and heatsink with longer screws?
View attachment 3856159

Not sure if i follow from that photo. But if they are sliding boards, that is a very cool idea. Good luck
There are 8 holes(5mm ) that you can use to attach the heatsink