Wattage refers to the amount of
power (electricity) consumed by your appliances and equipment.
Sounds simple, doesn't it? Actually it is very simple and it is
important to know a little about it because you need to know
wattage in order to choose a Converter or a Transformer. The
wattage of most appliances and equipment is found on decals or
labels of some sort on the appliance or equipment or in the
owner's manual. In addition, the decals or labels also usually
give the voltage and/or amperage of the appliance.
wattage isn't given you can still figure it out if you know the
voltage and amperage. If you multiply the voltage times the
amperage, the result equals the wattage of the appliance. For
example, the decal on the appliance you want to take overseas
doesn't list the wattage but gives the voltage as 120 volts and
the amperage is 1.1. To find the wattage of that particular
appliance, multiply the voltage 120 times the amperage 1.1,
manufacturers of transformers recommend that the connected wattage
not exceed 90% of the Transformer's rated wattage. For example,
don't connect more than 450 watts to a 500 watt transformer.
that you know how to figure the wattage (either look on the label
or do the simple math) you are ready to select a converter and/or
a transformer. To choose either one you first decide which
appliances you want to use, second get the wattage of each item,
and third, decide how many appliances you will use at one time.
See which of the three situations below applies to you, then look
at the solutions and examples:
You will bring and use more than one appliance.
1). Just find the wattage of that one appliance and choose
the converter or transformer that suits your needs.
2).If you know for a fact that you will never use more
than one appliance or piece of equipment or combination thereof
at one time then you find the highest wattage of your appliances
and choose the converter or transformer that has a higher wattage
than that one appliance.
3). Add all of the appliance wattage you will use at one
time and once again choose the Converter or Transformer with a
wattage rating higher than the total of all the appliances you
intend to use at one time:
1. If your ungrounded appliance has a wattage of 550 watts
you can choose between the ungrounded step down Hi-Lo converter
(use it with the wattage switch set before plugging into the wall
at the 25-1875 watts setting) or the VC-1000 step up / step down
transformer. If your appliance is grounded or you want to use it
for long periods of time, you will have to choose one of the
Transformer model because the converters aren't grounded and
can't be used for longer than 45 minutes to one hour. The
advantages of converters are: inexpensive, lightweight, and
2.In this example you could choose the ungrounded Hi-Lo
converter that has two settings 0-25 watts and 25-1875 watts.
WARNING! Always switch to correct wattage range before plugging
into an adapter that should already be in the wall outlet, if an
adapter is used. You could also choose the step up / step down
transformer VC-2000. The Hi-Lo converter is not intended for
continuous use and must be unplugged from adapter which also must
be removed from wall outlet as soon as you are finished with
appliance or equipment. The advantages of converters are they
are: inexpensive, lightweight, and compact.
3A. You are bringing 3 ungrounded appliances that you have
to use at the same time with the following watts: 1400, 350, and
150. The total of all the watts is 1900 watts which is too high
for any of the converters but you could choose the step up / step
down transformer model VC-3000 . Remember you don't want to load
the transformer more than approximately 90% of its rated wattage.
3B. You want to bring a 300 watt grounded appliance, a 500
watt ungrounded, and a 800 watt grounded appliance and you have
to use them all at the same time for long periods of time. You
would add all of the watts, 1600 watts total, and choose the
VC-2000 model transformer. You couldn't choose a straight
converter, even though it has a wattage rating above the 1875
watts of all these appliances for two very important reasons, 1).
you have some grounded appliances and 2).
you intend to use them for long periods of time. Either of the
previous reasons preclude the use of a Converter, they can't be
used for long periods of time and they aren't grounded.
contents of this site are protected by the copyright and trademark
laws of the United States and international laws. All Rights
Reserved, 1998 - 2013.
technical questions or other issues with this site contact
Cherokee Drive Saint Peters MO 63376-3927 Toll Free 888 295 7650