Okay I drew this out to make it VERY clear... THIS IS TO END QUESTION ON WHAT IS HID AND WHAT IS PROJECTOR!

Part One: First look at the Highbeam... you can see the actual bulb (it is a blue bulb) and it is the only kind of actual bulb you can see on this kind of headlight (unless your highs are also in projectors)
Part Two: Now look at the Projector "Bulb" surrounded by the halo. You cannot see a lightbulb because the projector "bulb" is a round piece of glass that sits on top.
Part Three: Looking at the side shot you can now see that the projector "bulb" sticks out and is surrounded by the halo.
Part 4: The dotted lines inside the projector "bulb" are the ACTUAL LIGHT BULB that you plug in. It is a dotted line because you cant see the lightbulb because the glass projector "bulb" is in the way. The lightbulbs you put in your projector headlights can be HID or regular halogen, as long as they fit the size you need for your car.
Part 5: The wires for an HID kit go to a ballast that powers the bulbs, HIDs need different power so they need the ballasts. If you have stock headlights you may disregard this feature.
Part 6: Make this a sticky because I worked really hard on it!

 

You can also PM me if you have questions on this drawing... I think it is pretty clear now...

 

Nice artwork :-)

I am sure that is a major question alot of people are wondering about!

 

I always called the "projector bulb" a projector "lens".

 

So this is the thread we will reference them back to.

 

Yay.