A、15~17 halogen Headlights (U.S. Spec)，Direct installation


B、17~20 F-150 HD headlamp，requires installation of the wiring harness B


C、15~20 LED Headlights (u.S.Spec)，requires first installing the wiring harness B, then proceeding with the installation harness C


Plug into the DRL plug of the accessories. The image above shows the 2015-17 original halogen headlights with the DRl fuse inserted at the position indicated by the red arrow.


Upper lens height adjustment screw (LR edges are clockwise upwards and counterclockwise downwards.)
lower lens height adjustment screw (LR edge clockwise downwards, counterclockwise upwards.


Plug it yellow DRL; Unplug it white DRL
Plug it DRL breathing, turn signal running light; Unplug it DRL no breathing, turn signal no running light