In article ,
Lurch writes:
On Mon, 28 Jun 2004 00:24:06 +0100, "John Stumbles"
strung together this:

Are mains and low volatge halogen bulbs the same size?

Yep, the lamps are the same physical size around the front edge.

Also note that it's pretty impossible now to buy anything
other than dichroic LV lamps. The mains ones are easily
available in both types, and if the fitting is designed
for mains full reflector type and you fit LV dichroic,
the fitting will get hotter than designed for.

--
Andrew Gabriel