This fan keeps my entertainment center nice and cool and works great with the Cooler Guys programmable thermostat controller. This single fan on top of my audio amplifier is so quiet that you don't even hear it run. What a difference with this DC fan compared with my older and less reliable 120V AC fan. The Cooler Guys questioned me about my application and provided the best solution that beats what I had before.
2nd dealing with coolerguys they are great
Bought these as recommended by the cooler guys. Worked great. I used these in a greenhouse to move air around the plants. I placed one every 3 feet 12 inches above the plants. Very low power consumption and extremely quiet.
I have been using this cooling fan model for several years to keep me cool while I pedal on my bike desk (www.pedalpc.com). It's performed flawless, putting out a lot of CFM without a lot of noise for several hours a day, 7 days a weekA. I ordered two more for some other desks I am building, and was pleased to find the power cable is now longer, so I no longer need an extension cable!
I replaced 1 low speed with 2 medium speed, connected to my existing digital thermostat works great, cabinet barely gets above 85 now. The low speed single fan worked great but i needed more cooling power for my cab was getting in mid 90's, the 2 mediums did the trick and are still very quiet. Quality stuff they sell.