The message
from John Bachman contains these words:

According to my friends there the UK has a lot of odd things,
including standards. But I still think that it is a kilowatt.

mW = milliwatt

MW = megawatt

--
Rusty
Open the creaking gate to make a horrid.squeak, then lower the foobar.
http://www.users.zetnet.co.uk/hi-fi/