RESEARCH THE FANS FOR RPM, NOISE LEVEL AND CFM BEFORE YOU BUY. THE ONE IN THE PICTURE IS TOO LOUD.
MAKE SURE YOU GET A MODEL THAT HAS AN AC PLUG AND NOT A USB PLUG. I PLUGGED MINE IN TO MY TIMER SO IT ONLY COMES ON WITH THE LIGHT.
I bought an HLG 260W QB V2 rspec with the new Meanwell driver and this thing gets super hot with the light turned all the way up. It was hot to the touch at around 75% but at 100% it was literally too hot to touch. I am guessing at least 140 to 150 degrees. These drivers are designed to be used in wet areas which would explain why they aren’t vented or actively cooled but I hate hot electronics. It is a pet peeve of mine. I also believe that excess heat will reduce the efficiency and lifespan of any device. I know for a fact that heat = resistance in an electrical circuit.
I started researching options and came across the AC Infinity Axial series of fans. I purchased the one in the picture (Axial 1238) and mounted it on top of NX Top 5 pcs aluminum heatsink (on Amazon). Sorry don’t know how to link product pictures. I used some Arctic Silver 5 thermal paste under the heat sinks and now the driver is barely warm to the touch. I am estimating around 85 to maybe 90 degrees.
The heatsinks listed above are approximately 4" long by 1" wide. Using 4 of them covered 90% of the driver.
I have ordered a different fan with a speed controller so I can cut down on the noise and watts. The one I have is overkill. I will repurpose it somewhere else. I have ordered the Axial S1225 and will update this post when I receive it.
I am not doing this to reduce heat in the grow room as I know you can remote mount drivers. Even if yours is remote mounted, if you have a dislike of hot electronics this is a perfect way to keep your driver nice and cool.