Dave Liquorice wrote:

On Thu, 2 Oct 2003 11:05:32 +0100, BillR wrote:

flickers ++++++++ whether its switched on from the switch or the
switch is left on and the door contact is used.

Are these switches in series, both need to be "on" for the light to
come on. Or is parallel, either will turn the light on but if one is
on the other won't turn it off.

series - the main switch on the tube holder has to be on and then there is a
door contact.
ie I can stop the thing coming on a tall by switching the tube one off