Cooling Quantum Boards?

My quantum boards are getting up to 45C/115F with a 6" fan on them (measured with my thermopro), and I can't seem to find any information about cooling them, or what temperatures they should be sitting at. I'm thinking of trying a 120 computer fan.

What qb boards and driver are you using?
45c is fine,I think 50c with no heatsink is common

Two 304 boards mounted on one heatsink with a hlg-240h-c2100b. I've got two of those setup in my 2x4x5 tent.

Some 6 inch fans are about worthless, like some of the cheap clip on 6 inch fans. Barely move any air on high. That could be part of your issue. Also seen a few threads about the 304s were it was stated they tend to run a bit warm. But I'm new to LED lighting, so take that for what it's worth.

45C is a very reasonable temp. Stop worrying over nothing.

This is why I like Dimmable drivers .. I can drop load slightly and get it running cooler.
I am running 4 QB with cobs and still am able to touch slates. Just oscillating fans in 3x3 on a 18/6 cycle. As stated some clip fans are less than effective but you " could " technically have two blowing laterally across boards from each end of sink. But usually dropping power slightly will rope it in.




Which slate heatsink ?

Do you have pics of your setup ?

Freakish said:

Two 304 boards mounted on one heatsink with a hlg-240h-c2100b. I've got two of those setup in my 2x4x5 tent.

Click to expand...

You must have those wired parallel then so 1050ma each board? If so they will be fine.hows the temps in the tent ?

I do think the single slates cool better than a double.much better to use a triple to run 2 x qb 304 but now that doesn't help you much . Still under 50c is fine