QB 96, temp question

Yes, they are hot! I got mine wired each to 240W... and that's where I run em
If you can wire the driver somewhere else is maybe best for temps.

 

Yep they get hot. Set up intake fan extracting fresh air from outside and inpu into tent with exhaust fan as well. You want your intake fan smaller than exhaust.

 

yea, I like my purchase, but I have warning people about the heat (esp. in tents). Grows good meds!

 

Maybe check out portable AC or window AC if temps are still too high.

 

I wasn't gonna post this, but imma gonna anyhow.
I actually used to use neg pressure, but since I built a filter box, I'm more into a greater positive pressure. It just keeps dust, pests, crap away from my room. I still use an exhaust + filter (big ass 2 footer at least) but its not as strong as the intake... and my house still smells like dope (prob that positive pressure), but at least a lot of used air gets dumped back outside.

 

I should add, there's better models on youtube than my micky mouse operation... but it does work good, and I need to change the filters soon. No cat hair, little dust balls, crap in the air; maybe spores, but prob not many. I try to use good filters on it, but a couple near the wall I just left some lower MERV rated ones.

 

I think it might be a good idea to just plan on a fan on the heatsink. I use a 6" clip on fan blowing across mine horizontal and it works wonders for reducing temps.

I think completely relying on passive cooling for a light of this power level is a little crazy. If you give it some air it really helps reduce the overall running temp. A 120mm powerful computer type fan on the top of the heatsink blowing down you can run them up to 320 watts per board according to HLG.

 

I got a computer fan on Amazon for like 11 bucks and it keeps the QB96 nice and cool at 300 watts..


Sent from my SM-N950U using Tapatalk

 

I used to build gaming computers. A 110cfm 120mm fan is going to be screaming. I would get a speed controller for it. Looks nice.

 

That fan is going to make a giant difference in temps on that thing. When I was into air cooled overclocking I bought a fan for my cpu with similar CFM output. It's pretty loud. Yours says 47db. For a fan that's some noise. If you don't have to listen to it that might be fine. It's probably more power then you need. You could probably pick up 2-3 slower speed 120mm fans for the price of that one. They might not last as long though. Usually the higher output fans have better bearings and longer projected run time. That last 120mm I bought over 100cfm had a rated 100,000 hours of run life. I still have it and it's over 10 years old. Sunon fan.

 

I'm sure with that fan you can run the full rated 6000mA @54 volts max. They probably didn't consider a fan that's 110cfm and perfectly sized for the top of the heatsink when they made that max rating. If your cooling is superior you can push it harder then the max.

The max ratings are a guideline. If you've ever watched the "qb288 torture test" videos that ledgardner made on youtube he put 600 watts+ through a v1 qb288 and it never burnt up. He was never able to burn out a board even though he tried hard. You can push the max rating no prob if you really wanted to with that fan. Not that you would ever want more then 300 watts through each qb96. That's a little bit crazy mode IMO but the max rating with fan cooling is 320 watts.