How an energy saver / power saver works?
In India, a lot of multi level marketing companies were promoting a product called energy saver or power saver. It is claimed that by just plugging it in a power circuit, the electricity consumption goed down any where between 20% to 50%. Whether this product works? What is the principle behind it?
here's the link http://www.bigclive.com/power.htm
in the above link you can find the product, it is just like some box which is to be plugged in to plug point, what my question is , how can the instrument save power, because it is just plugged into plug point and not into mains, so instead of saving power the instrument itself will consume electricity,
It could be some kind of inductor
Those are my best guesses.
L