The position lamp lights up with the other position lights, but with dimmed brightness. When the truck then turns on the direction indicator, the lamp will light up (and blink) at full brightness
Installation:
The lamp is disconnected from the original connector, and the adapter is put in between. The long 5 meter wire is then connected to the position light on the truck. The adapter uses original connectors
NB! the adapters are sold individually, you will need one on each side.