Originally Posted by circuit
A 5W fan is doing more work than spinning colossus. Think about it.
I would put money on colossus unloaded lol. Its moving a lot of air and more then a 5w fan would be. But at ~7000 rpm is has big eddy current losses. If I lowered it to ~ 4000 rpm then the unloaded current draw is less.
OH and one big thing we forgot colossus is NOT using the whole 700watts the controller has its losses too!