The recent f150 optics are garbage. Sloppy reflector housing doesn’t control light at all, and the aiming mechanism is vertical only, but the housing doesn’t move purely vertical - it goes outbound as the light lowers. New, mine were easily 20 degrees above horizontal. As I adjusted them down to the road, the hotspots left the pavement and went into the ditches. I kid you not they were that bad.
I cut the fronts off and installed HID projectors. And yes, cut them, because the housings had a lower melting temperature than the glue holding them together. The moment that was discovered, I was committed. I kept working the temperature as I’d pull them out, pry a bit, stick them back in, until I pulled one out and my mitt just sank into the housing while the lens wouldn’t budge. This was an awful HID projector retrofit, just a disaster. The end results are what they should be light-wise, but the workmanship looks junior high. If I ever sell the truck, I’ll probably have to install some TYC housings or something. In the meantime, I enjoy seeing the road and having true cutoffs and quite decent near/far distribution.
On topic - with the oem reflectors as bad as they are, an LED lamp source would be a disaster.