Originally Posted by Mulder
Correct, you are better off with an HID housing vs. a halogen housing with HID bulbs. It is possible to get acceptable results with D2S bulbs in halogen H7 lights (I actually have this setup in my Morettes), but it still won't match the performance of true HIDs.
Which is why I will have TSX projectors when I can afford them. The D2S bulbs in my H7 projectors is temporary.