Thanks for the replies! Your both right, I did an in depth check today. Basically the inner lights have 2 bulbs in each which are: 1. The Side (Parking) Lights, lights you put on when its starting to get dark (one turn of the knob) *quiet at the back* 2. The Headlights (the ones that you flash to let someone go) Jaguars name for the inner set of lights are: Side (Parking) Lights The outer lights are simply called: Headlights Hope this information helps owners in the future, loving mine so far. Thanks again J