Fred, I have to agree with the last poster. My '72 1.3 (basically the same as yours) had the original incandescent bulbs .. (check your owner's manual)... the switch operates the parking lights on the first twist of the stalk.. then outside low beams on the second twist then all four on the high beams when lever is dropped. The bulbs take a dual filament H-4 to upgrade with the inner lights only connected to high beam. I believe your style was retro fitted.. The lens on mine is a script Carello 07.480.700 and the car was imported 30 years ago. This is why you might not be able to talk turkey and make sense with suppliers. Cool lights but not stock. What ever makes you happy counts more than stock.