Aussie Centrifugal Fan

Hey people.

Just looking for some aussies to answer a few questions;
What Fan are you using? Australian or American? Are you using an american fan with adapters? or is a 110v transformer needed?

Additional: if anyone can help.
Im looking to duct 3x 600w HPS. the distance is prety short about 8 meters im thinking of using a 8" around 750 CFM. My only concern is splitting the duct into 3x 6 inch ducts as im not sure how much air movment I will lose or If i would be better running 2 fans with less cfm

Anyone? Im COnsidering just buying a vortex or sunleaves from the states and adapting them. I am not an Electrician but i am a young audio tech. When we have USA touring sound crew come over for the electrical appliances we have a step down transformer side of stage that we then run the american appliances off we call it a "pig". What i really want to to know will these american fans require one or is there any easier way?

Edit: Step down transformers are pretty cheap online. Maybe ill go with the usa import.