I think it's easy money for whoever sells these items and wasted money for whoever buys those gissmo's. [Linked Image]

A low power factor will cause kWh meters to go slower, but not all appliances like a poor PF and more wiring losses are created.

warm TV's?
I fitted 2 x 110 Volts fans in series at the back of the lounge TV to dissipate that excess heat and prolong the life of the TV.

The product of rotation, excitation and flux produces electricty.