brilliant, it was me missing something (had forgotten the third post and was thinking of them as a on/off switch)
thanks!
good find! trying to find the 24V version as the link above only has the 12V. tbs-electronics.com Greek dealer hasn’t got it, so have to source it somewhere within the EU.
correct, doesn’t work just inverts output (so an off becomes on and vise versa), should be easy to fix, will try and have a look at the w/e