Well go buy one then. YouToobe is full of crap, they have "working" HHO motors too!

Originally Posted by ignisuti

TThe reason I'm beating this into the ground is because the YouTube videos I've seen for common power factor correction devices show you this concept very clearly with a DMM attached. What they show aligns perfectly with what I've been taught and I can't see any smoke or mirrors in the videos. It all looks legit.

An external gadget cannot alter the relationship between I with respect to V internal to a two-terminal device such as a fan. It can alter the outside appearance of I with respect to V, by adding reactive current to balance that drawn by the fan. (This outside appearance of I wrt V is power factor.)

You can plug certain old motors into a motor controller to reduce the input voltage when it detects that the motor is lightly loaded. It only works with motors which are oversized for their task. Each old motor needs an individual controller because the load must be detected separately.

[edit] A short demo like the one on YouTube can easily be arranged using a Variac. [edit]

Once started, an oversized motor will run well on reduced voltage provided its conditions are carefully monitored. A sophisticated motor controller can and does save power by monitoring the work being done and applying the correct voltage. But the motor alone has the final say about the relationship of I with respect to V at its terminals.

They sold devices for a while called "Green Plug" and I was suckered into buying one. Problem was, my fridge wasn't old enough. The Green Plug cheerfully reduced the voltage and my poor fridge hummed and buzzed and clicked and quit. Saved a lot of energy.