On Sat, 10 Mar 2007 20:54:17 GMT, "The Medway Handyman"
mused:

Will a normal dimmer switch work on a two way circuit? e.g. 3 core & earth.

Define 'normal'.

If by normal you mean '2 way', then yes. If by normal you mean '1 way'
then no.
--
Regards,
Stuart.