On Fri, 27 Jan 2017 10:34:53 -0500, wrote:

Hi all ;
I am planning a vacation to Ireland and shopping for a travel adaptor.
All the ones that I find online state that they do not convert the
voltage - which is OK for the laptop converter - which will accept
240 volts 50 - 60 hertz ; and OK for USB charging ;
- but what about other 120 volt devices like my camera battery
charger - that are 120 volt input ?
Are there better adaptors available that reduce the voltage ?
or some other option ?
John T.
One op[tion is a better charger for those items. Switch mode chargers
are more efficient than the old transformer "wall warts" and are
generally pretty well voltage agnostic.

Otherwise you need an autotransformer (which is heavy and generally
speaking "not cheap")