"Martin Brown" wrote in message
...
A decent proportion of hotel bathrooms have 240v ac available in them.

Quite possibly, though maybe 220 V (two anti-phase 110 V supplies, as is
supplied to houses to run high-power devices like aircon, tumble driers,
cookers).

However I'd still expect it to be 60 Hz, not 50 Hz. Depending on how much
the transformers or coils in motors are tuned, they may or may not work at
60 if there are designed for 50.