I hope I don't sound like a noob with a downer attitude but any housing designed for a halogen/filament bulb will not have a proper pattern with a true HID conversion kit. This is because the light now emanates from a single point (the arc) and not along the length of a filament.
This usually ends up scattering the light around, including up into the eyes of oncoming traffic. The now less focused light actually puts less light in the proper spots. To make matters worse, the kit makers know this and increase the actual light output above what would normally be required so the customers "see" an improvement. This further exacerbates the glare issue for others.
If you can, take a look at the cut-off of a factory HID projector on a garage wall or something. Then look at the cut-off of a normal halogen lamp or projector with a HID kit. You will be suprised. Consider that any light above the cut-off does nothing to further iluminate anything on the road any more, but does contribute to blinding other drivers.
A high quality halogen bulb is the best upgrade for non-HID housings.
This usually ends up scattering the light around, including up into the eyes of oncoming traffic. The now less focused light actually puts less light in the proper spots. To make matters worse, the kit makers know this and increase the actual light output above what would normally be required so the customers "see" an improvement. This further exacerbates the glare issue for others.
If you can, take a look at the cut-off of a factory HID projector on a garage wall or something. Then look at the cut-off of a normal halogen lamp or projector with a HID kit. You will be suprised. Consider that any light above the cut-off does nothing to further iluminate anything on the road any more, but does contribute to blinding other drivers.
A high quality halogen bulb is the best upgrade for non-HID housings.