I have 2 sets of the Riing Plus fans and absolutely love them. Look amazing! However, one of my six fans looks slow. Under light I can see shadow of fans spinning whereas the others I cant' tell that there is blades spinning. (does that make sense?) The software says it is running at 80% speed, like all the others, but why does it look different?
I'm wondering if I can replace one fan? I spent $35/fan and don't want to have a faulty one in the system. Any feedback would help.
btw, they are spinning at ~1250rpm so I can't take a photo to show you. But with human eye I can see the shadow of blades and it drives me nuts.