The adjustment dealies stripped out while installing so I scavenged the ones off of my ancient OEM lights. Otherwise, installation was straightforward. The LEDs are seriously bright. I don't have a lift, my I have 35's and a 4x4 so the truck's lights are high enough, and I'm surprised that I'm not getting flashed at by oncoming traffic. When I pass (or am passed by) other traffic on the highway, it's typically tough to tell that their headlights are on because of how bright these LEDs are, I'm just astounded at how well I can see now. Should've done this years ago, but it took a headlight filling with water and destroying the old halogen to get me off my butt and order.