International travel plug adapter?

I'm confused and I'm not sure it's a travel adapter plug you trust who can use the following UK electrical items, hair dryer, electric toothbrush, mobile charger socket, laptop Apple Mac Book. I bought A travel adapter plug cheap, but says he can not use sockets discover bands, or if the socket is not grounded? maximum load of 10 amps 250 volts. only plug used with the apparatus that sent the earth? Please, can someone recommend a good adapter that I can use the devices in the following countries mention the EU, USA, Canada, Australia, South America! thanks

Even a good adapter, you probably have the same warning. All the electrical system in other parts the world does not have the same standards in the United Kingdom. Your hair dryer is likely to misbehave in the U.S. in anycase. Its voltage is 110 V not only the 240 in the UK. unless your hair dryer has a switch 110v is likely to think that half of its power.

Apple Laptop song – Jaggubhai

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