<FONT face="Comic Sans MS">Just to review:
In marketing headlights, Xenon and HID are used interchangably, however just because a conventional filament bulb has a bit of Xenon gas inside the envelope it doesn't mean it's an HID system (High Intensity Discharge).
Real HID system bulbs use an arc (instead of a filament) inside the glass envelope to generate the light. Because there is Xenon gas inside the envelope, they've been called Xenon/HID lights.
A disreputable marketer could call his conventional filament bulb "Xenon" if the envelope has a bit of Xenon gas inside and a blue tint on the glass to simulate the HID look. Pump up the wattage and many will think they have the real thing.
What they got however is a much hotter bulb, (melting housings) one that draws a lot more current (blown fuses or worse) and has an ugly blue tint. They are cheap though.
What they don't have is the true white light of a HID system, better night time visability, the cooler operating temps, the lower current draw and the expense of a real HID system.
Real HID systems also need an external ballast to start the arc. It's about the size of a deck of cards and you need one for each bulb. No ballast, no HID. In Sean Roe's kit, the ballast fits inside the housing so you have a very nice, very clean install. Been using it for over a year with no problems.
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