the fan themselves are just fine. but that control box sucks. everyone i know that has the control box has died. in my case it was a firey death. i had it wired w/ 12g wire from a 40amp relay then each fan has its own 12g wire. it drew enough current to melt the wiring and catch on fire, yet not enough to blow the fuse. yes i used the size fuse that was recommended. it never blew, just melted. anyway- here is the pic. luckily it was caught in time no real damage was done.