There are all kinds of scams going on. I would have to personally test this
device in our company lab, and then do a follow-up with the power company
for verification. This type of proper testing can end up being expensive.
You should ask for the UL, or CSA, or EC registration numbers, and follow
this up, if you do not have an independent lab that can test this and follow
it up for you. Also, you can check for the ISO standard for this device. If
it is a viable product that connects to any type of AC mains it has to have
an electrical safety rating to be sold publicly.
There used to be something on the market called an "Energy Button". This was
a little disk shaped gadget that you would put inside a lamp socket, and
then screw the lamp in on top. This device was really a basic 1/2 wave
rectifier power diode. The lamp would work about 30% dimmer, and an amp
meter would read about 30% lower if put in series.
The problem with the Energy Button is that it was making the power 1/2 wave
rectified. This reduced the brightness of the lamp, and only an incandescent
lamp (lamp with a filament) can safely be used with this. One of the reasons
why this gadget was pulled from the market is that people were trying to
adapt it for other applications and were damaging their appliances, and etc.
A modern compact florescent would be damaged instantly with this gadget.
Some people tried to adapt this gadget to use on TV sets and radios. Many
were being instantly damaged!
If you want to save electricity, you can use lower wattage lamps where high
brightness is not required. Turn off appliances and lamps when they are not
required. Use compact florescent lamps where ever possible, or where they
can be tolerated. When you leave a room turn off the lights!
In air conditioning and heating systems, make sure that the filters are
always kept clean. The same is for the vacuum cleaner. When there is dirt in
a filter, the motor will work harder to move the required air.
In your home heating system, see if you can lower the hot water thermostat
by a number of degrees, and still have satisfactory hot water. The hotter
you keep it, the greater the cost. I tell people to set their hot water
thermostat to 130 F degrees instead of 140 F or 150 F degrees.
In the winter time when you are not home, lower the temperature by about 2
to 4 degrees. If you can tolerate an environment that is at 68 to 70 degrees
as the normal temperature instead of 72 to 74 degrees, this will also
decrease the heating cost.
Have your home checked for thermo leaks, and repair as necessary. Have the
efficiency of your home heating and air conditioning efficiency checked as
well.
There are many ways to save electric power. It has to do with your
lifestyle, and how you do things. Many people are waiting about 20% to 40%
of the power they use in their homes. Sometimes it may take an investment up
front to fix the problem, but over the long run, they will save.
--
Greetings,
Jerry G.
http://www.zoom-one.com/electron.htm
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"mowhoong" wrote in message
om...
Sometime ago I walk passed a stall selling power saving unit, it clam
that you can save up to 30% of the electricity bill when you just plug
it into your
house power point. He than demo with a amp meter & a light box(I do
not know how many FL. light they had connected inside the light
box).The amp meter drop from 8A to 4A when they plug it into the power
point, I really don't belive it,but they can show proof infront of
you.Can any person help me to explain ?