I tried a similar thing too, and it doesn't work.
When they show you the demo lights they only show you two lights at a high intensity, they then say this is red and this is green Okay? Only it isn't!!!!! What is the point of demonstrating the lights when the lights used in the actual test have a different luminence etc. Talk about leading you down the garden path!!
Does anyone know what lanterns the Irish CAA in Dublin use if any?