In article ,
Lee Blaver writes:
Ian wrote:

I have purchased some recessed light fittings for my bathroom, it states on
the boxes that they require left hand thread ESS lamps.

I have never seen these are they Australian.


I'm obviously missing a joke here, but I do know that left hand thread
lamps are available.
Any clue why though?

They used to be used in public places, so there was no point
stealing the lamps to use at home. I heard the NY subway still
uses them, but I would have thought they were pretty obsolete
now. Don't recall seeing them in any lighting catalogues for
perhaps 25 years now.

--
Andrew Gabriel