Ive got one
think i paid £17 for mine on a german ebay listing its a copy of xerun 60a comes with 422 stock supercharged software
my fan never worked instant burning smell
thought i killed it
bought replacement fan from giant cod and wired direct to battery input wires ran with 17.5 stock TC no issues its now in my dave 1S powered i use a reciver pack and you need to turn OFF voltage detection seems to be fine yet to race in anger but testing seem OK
UPDATE just tried 1s without receiver pack Yes it appears to work OK
hope this helps
fid