DIY with Quantum Boards

pop22

pop22

Well-Known Member
Feel free to go stir it up some more! If the fool just had not made a crack about HLG...............
 
SCJedi

SCJedi

Well-Known Member
I had to break down a tent in a rush the other day and while I was I forgot that the 480w ballast was simply sitting on top of the heatsink and it slipped to the floor. Holy shit are those surface mounted connectors fragile. LOL

All ballasts are screw-mounted to the wall outside of the tent now.
 
ilovereggae

ilovereggae

Well-Known Member
SCJedi said:
I had to break down a tent in a rush the other day and while I was I forgot that the 480w ballast was simply sitting on top of the heatsink and it slipped to the floor. Holy shit are those surface mounted connectors fragile. LOL

All ballasts are screw-mounted to the wall outside of the tent now.
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Have you gotten that 2nd fixture sorted? I know you were having issues with the new driver.
 
LarsVegasNirvana

LarsVegasNirvana

Well-Known Member
Sade said:
Oh by the way how do you like those diablos vs the 550s?
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I've got two double heatsinks with V2 boards, and two double heatsinks with Diablo boards in the same tent. You don't notice a huge difference between the two sides when you run higher light levels because you're getting diminishing returns with more light anyway. They really shine when you're running them at lower PPFD levels where a 10% or 15% increase in light actually gives you a significant difference in yield.

I was thinking about using thermal paste to improve efficiency, but that would be really expensive for 8 boards. I was looking for a cheaper solution and I came across flexible sheets of graphite, which has roughly double the thermal conductivity of aluminum. Perfect.

Thinner sheets of it are kind of expensive, but this thicker stuff should work just fine. If anything it'll add more thermal mass to the heatsink.

https://www.amazon.com/0-8mm-200mm-Graphite-Flexible-Gasket/dp/B07NW8GCXB/


Seems like it's worth trying. Who knows, maybe you need the thinner stuff to get a good surface contact. I don't know. I use a thin sheet of it on my CPU heatsink. Works great.
 
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