Because some countries like America run on 110v of electricity and
others on 220v, transformers like this European Transformer and Converter lower
Europe’s voltage so your electronics don’t short out or catch fire.
Basically, you need a travel transformer if your device contains a computer chip or if your device
will be plugged in for more than a half hour. This
is because a power transformer constantly reduces the voltage from 220v to
110v, where as a converter switches on and off the higher voltage to make it
seem like 110v.
The Europe transformer also accepts two and three prong plugs, has fuse protection & power switch, and has an LED light showing when power is used.
Since transformers can handle things plugged in for a long time, they’re perfect for cell phone chargers, camera chargers, battery chargers, and lamps.
order to use the European transformer in the U.K.,Italy,Switzerland, or Denmark or in certain countries outside Europe, you
will need a grounded plug adapter. Transformers should NOT be tested in the
lbs. Size: 4' x 3' x 3'.