Hi guys so after much research I think the best way to get a non humming single speed fan controller would be to build on myself (Has nobody had the idea to build WAC1s with a plug and a trailing adaptor wired up safely, I'm sure people would pay £50+  ) Anyways... The list of things I will need to build this (Please add and correct me if I miss anything or there are better alternatives feel free to pm me)   Xpelair WAC1 Single Fan Controller £27.55 1 Gang with 3 Metre Lead rated at