We ordered a full plug-and-play HID kit from the lighting pros at RaptorRetrofit.com to convert our 2013 F-150’s H13 halogen harness to a ballast-ready HID harness ($150).

They typically offer lighting output similar to that of a 150W halogen but are typically rated at only 35 watts. That translates to HID units being about 300 to 400 percent more efficient than ...

As with xenon lights, several companies offer kits to convert halogen systems to LEDs, though these kits often include only one LED bulb that fits into the original socket.