It's true that some HID's cost a lot. A true HID bulb will cost more than halogen. An HID bulb ....at least the one's I've seen ......are longer and have a different filament than a halogen bulb. A true HID bulb needs a cool-down period before cutting back on or the heat will kill it. High dollar Porsche/Nissans/BMW's and others go from high to low with the same bulb by electrically shifting a
gate to switch from high to low beam. The bulb stays on for both high and low beams and lasts longer.

There are fake HID's that sell for less. There are fake kits with a ballast, one per side, and the bulbs are halogen bulbs that have been dipped in blue transparent paint.
A little like the yellow "driving glasses" that fool your eyes into believing you see better when certain colors are filtered out, dipped bulbs do the same.....and if you think
you are seeing better, then maybe you are.

Would someone else care to elaborate on the projector beam lenses as to length of field and intensity?-Bob

I have my own headlights question that I'm asking in a separate thread so I can avoid trouble. This is the link: https://www.tamparacing.com/forums/g...ml#post9198350