On Friday, 4 May 2018 16:27:35 UTC+1, Harry Bloomfield wrote:
Brian Gaff explained :
I'm not sure exactly what you are doing here?

It is one of those silly scam gadgets, which claims to save on your
electricity bill. They reduce the voltage by 10% and claim it will save
you 10% on your bill, which is absolute balony. Heating loads will just
take that 10% longer, motors produce less power output, incandescent
lights will be much less than 10% dimmer, LED's and CFL's will simply
draw more current, to produce the same amount of light, or more lights
will be needed to make up for the darkness.

The unit itself, will also waste some power in heat produced.

But you forget the most important things, those suggesting such things and carrying them through get the adulation from all those that think money has been spent rather than wasted and it loks good on paper and anywhere else the real world doesn't get factored in.