I have just purchased a couple of Wipac Stop/Taol Lamp (Product No. S6082), it comes complete with lamp holder.

Could someone confirm which pin is which.

Looking from the back (where the wires enter) you have 1 brass coloured pin which is the earth, and then 2 others, which one is the stop light - middle or outer?

Cheers,
Iain

Just tack it across a battery to try it. Brighter one is the stop. Alternatively measure resistance with bulb in. Lower resistance is the stop.