Just a heads up. My wife has been hassled by callers trying to flog this product (Digital Power Saver) for a few days now. I spent a bit of time on the phone to one of their representatives (from Sydney apparently) this evening. Very thick Indian accent, hard to understand. They are apparently promoting a device that reduces your power use by 30-40% and hence your power bill. It sounded great - too good to be true really.
They start by promoting that they have a device that is Australian Govt approved and then inquire about your quarterly power bill. You then get the spiel that it saves 30-40% of your power bill. I was immediately sceptical and asked how it infact does this. I was informed that it removed power spikes and saves power. He then asked me if i would like to buy one, only $300. lol. I asked him for more info and he read some more crap about power spikes and fluctuations. I pressed him for a brand name and he finally gave me a website after consulting a supervisor. I told him I would need to do some research before committing to any purchase.
The website he gave me was: http://digitalpowersaver.com.au
The site is pretty slick, though some of the text is a bit chinglish in places. The crux is apparently you just have to plug one into any power point in the house for it to control the power supply to your entire house full of appliances.
This doesn't sound right to me. My house has several different circuits and I can't see how plugging a device into a power point on once circuit can influence appliances on other circuits.Plug your Power Saver into any power point in your home/office. When plugged in, it becomes part of the wiring for your power points and automatically stabilizes all incoming power voltage.
Your appliances then receive only the amount of power they need to operate, preventing any wastage.
There is a gobblygook explanation of the units function from the Chief Engineer, Jims on the site:
Digital power Saver Chief Engineer, Jims brief technical explanation.
This is Jims , your manufacturing chief engineer.
The power saver saves electricity through reactive compensation, it reduces the power current (ampere) in the circuit and improves the power factor, so the power efficiency can be better. Power saver works on the customer's power loading. The SD-001 is effective only on inductive load, if the inductive load of the house is not big part, there will be less obvious current change.
The components, C1,D1,D2,D3,D4,C3,ZD1 provide 5.1V DC power.
R4,LD1,LD2 will work when the circuit works.
The capacitor,6.8u/275V will provide reactive power.
The current will be reduced.
Now apart from sounding dodgy they are asking $300 to buy a Digital Power Saver (the website has them discounted to $200 - note the targeting of pensioners in their testimonials - Murray Farquars!). http://digitalpowersaver.com.au/testimonials.aspx
After a bit of a google I found a couple of sites selling the same units in batches of 50 for as low as US$2.50 a piece: http://www.alibaba.com/product-free/...ng_device.html
It is surely a scam. When I googled I didn't find many references, hopefully this page might start to show up in google searches if other people try and investigate.
edit: after a bit more of a thorough search there are a few site about that allude to the scam being pressed around the globe. http://www.brighthub.com/engineering...les/81900.aspx