If your white wire can be wired direct to power that's probably fine, but since you said it was connected to the ballast wiring I have to think it needs to be switched.
No instructions with it?
Maybe look them up online if not?
The white wire isn't connected to anything right now, hence the conundrum of where to wire it to. It isn't connected to the ballast. The instructions that came with the fan kit aren't the greatest...but I have them...it just says to wire it to a 12V switched source...
