Had a few issues with this. The first one was the holes for the components are all over the place - things do not line up properly and it makes everything look a mess. The fan and lamp fittings are not only twisted, but are different distances apart. It’s a mess. When the fans were attached by the seller, because the holes were not in the right place, they had to bend the bolts to get them in the holes!! Another problem is that all of the fans were fitted to blow downwards onto the heatsink. This creates what are known as ‘air-dams’ and stop the efficient cooling of the heatsink as the air has nowhere to exit from under the fans. The fans should ideally blow at an inclined angle along the heatsink to obtain the fastest airflow. As a temporary compromise, I have set my system to have three fans blowing on and two sucking out until I can 3D print a better ducting system. To summarise, it’s ok, but you’d be better off doing your own drilling if you want something that looks professio
All three fans turn; if they last a season I will be shall be very satisfied. I bought these for a garden project, i.e. early seedlings.