wrote in message
...

Will things like electric shavers, hair dryers etc. from UK work
straight from the mains (using the 2 flat pin adapter) in USA? Does
one need a "step down" transformer / voltage converter?

My shaver will work on anything from 12v DC to 240v AC. Others won't, so you
need to check for a plate on the equipment or the bits of paper that came
with it. Hair dryers are unlikely to work without a *step-up* transformer,
unless they have been bought specifically as travel dryers. Again, you need
to check the information in your possession to know.

Colin Bignell