Can low beam projector modules be used as high beam?
Yes, it can. There is not really a good reason for using low beams as high beams. A high quality high beam will give good results out of the box – a well known “Free Form Reflector” design does the trick. It cost less. An all metal design can take almost unlimited amount of overwatt bulb. And the most important part: there are alot more of them available on the marked. Probably the best complimentary high beam units would be a spot type beam. An HID projector low beam alread has a lot of width and foreground lighting. Anyways, if you still want to, this would be the way to do it: A low beam projector comes with a bottom shield. Simply remove this. This will make it send out light further down the road with no cuttoff line. Then a top shield should be made. For background info – see above section above. Just use some aluminum foil. It does not need to have same accuracy as a low beam shield. It should typically cut off all light hitting the road closer than 30 meters (100ft). This will