Originally Posted by
mudski
That golf ball you see Adam is the Projector lens. It acts like a magnifying glass. So with this and a HID globe, its a no no to be aftermarket fitted here unfortunately. As the vehicles that do have these two combinations fitted from factory have self levelers fitted so the lights will dip downward a little when the car is facing upwards. This stops the blinding effect for oncoming traffic. Not that it helps a lot. Also they should be fitted with washers on the front of the lamp, the washers are supposed to squirt water on the lens to stop the lens from icing up, which will blind even more people.
The lights I had, were HID with projectors, but no levelers or washers. Plus they weren't ADR approved, so I had to remove them when I had the engineers done.