I tried an LED H13/9008 replacement in my 2004 F-150. Picked a color that was 'pure white'. There was a tremendous amount of light output but it was all over the place! The vertical adjustment had no effect and I was lighting he tops of trees, bottom side of overpasses, stuff way out to the sides ect...ect... It was blowing light out everywhere! Lots of oncoming drivers were flashing me so, after a week I went back to halogen bulbs. I really wished these would have worked but that was not the case.