1+ Quad headlamp  
2+ Headlamp bulb  
3+ Bulb  
4+ Nut and washer  
5+ Light unit  
6+ Light unit  
7+ Headlamp leveling actuator  
8+ Headlamp adjustment kit  
9+ Headlamp bulb harness  
10+ Plain washer  

The part numbers in the assembly image below relate to the product number in the table. Clicking on the part number will open up the relevant part details.