If you're contemplating putting HID lights in a standard housing, it doesn't work.

It puts out light, plenty of it, but not in the right places. The HID light comes from the entire volume of the arc-tube, which is a much larger area than the filament on a tungsten / Quartz-Halogen bulb, the reflector and lense in your car is designed to collect and direct the light from that filament, not a large arc-tube.

Save your money and the retinas of other drivers and either buy a good silverstar bulb and put in relays to get full-voltage to your lights, add good fog or driving lights, or look for a complete HID light that is actually designed as a unit with proper ray-tracing software etc. so that the light goes to the right place.

No, I haven't done a conversion, just have been in automotive engineering and lighting for most of my career.

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Gone to the dark side

- Jeff