Just to back my claim up with valid, credible information: Left you the link to read the whole thing but posted the main part. If after reading this information thoroughly and you still think your right, then I have nothing more to say. Well I would but....
Educate yourself.
http://www.danielsternlighting.com/tech/bulbs/Hid/conversions/conversions.html
Thinking of converting to HID?
So you've read about HID headlamps and have it in mind to convert your car. A few mouse clicks on the web, and you've found a couple of outfits offering to sell you a "conversion" that will fit any car with a given type of halogen bulb. STOP! Put away that credit card.
An "HID kit" consists of HID ballasts and bulbs for retrofitting into a halogen headlamp. Kits for replacement of standard round or rectangular sealed-beam headlamps usually include a poor-quality replaceable-bulb headlight lens-reflector unit that's not safe or legal even when equipped with the intended (usually H4) halogen bulb. Often, these products are advertised using the name of a reputable lighting company ("Real Philips kit! Real Osram kit! Real Hella kit!") to try to give the potential buyer the illusion of legitimacy. On rare occasion, some of the components in these kits did start out as legitimate HID headlight bulbs made by reputable companies, but they are modified (hacked) by the "HID kit" suppliers, and they aren't being put to their designed or intended use. Reputable companies like Philips, Osram, Hella, etc. never endorse this kind of hacked usage of their products. Nevertheless, it's easy to get "HID kits" from China bearing the (unauthorised, counterfeit) brands of major, reputable companies. See this page for just a few examples of the many packaging options offered by just one Chinese maker of "HID kits".
Halogen headlamps and HID headlamps require very different optics to produce a safe and effective—not to mention legal—beam pattern. How come? Because of the very different characteristics of the two kinds of light source.
A halogen bulb has a cylindrical light source: the glowing filament. The space immediately surrounding the cylinder of light is completely dark, and so the sharpest contrast between bright and dark is along the edges of the cylinder of light. The ends of the filament cylinder fade from bright to dark. An HID bulb, on the other hand, has a crescent-shaped light source -- the arc. It's crescent-shaped because as it passes through the space between the two electrodes, its heat causes it to try to rise. The space immediately surrounding the crescent of light glows in layers...the closer to the crescent of light, the brighter the glow. The ends of the arc crescent are the brightest points, and immediately beyond these points is completely dark, so the sharpest contrast between bright and dark is at the ends of the crescent of light.
This diagram shows the very different characteristics of the filament vs. the arc:
When designing the optics (lens and/or reflector) for a lamp, the characteristics of the light source are the driving factor around which everything else must be engineered. If you go and change the light source, you've done the equivalent of putting on somebody else's eyeglasses: You can probably make them fit on your face OK, but you won't see properly.
Here are some downloadable PDF tests done by DOT and CalCoast Labs on halogen headlamps equipped with "HID kits":
http://www.youtube.com/watch?feature=player_embedded&v=Y5n38wDe684