Det låter som att du skall ha Bi-Xenon. H4-3 heter lampan du ska ha
(kolla din instruktionsbok för säkerhets skull). Bi-Xenon kitsen är lite dyrare, $79.
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"b) If you car use one bulb to give both High and Low beams, that means your current bulb have two filaments, or we called it Dual Beam Bulb, so you should buy a BI-Xenon HID Kit, like H4-3,9004-3,9007-3,H13-3. You should buy the Bi-Xenon HID KIT accordding to your current bulb types. Bi-Xenon bulbs are telescopic model, it can move so you can have one bulb to give you High and Low. One set of BI-Xenon HID KIT can give you both High and Low with HID.
c) There is another bulb type, H4-2, this kind of bulb is similar to H4-3, it can give you both High and Low beam, but one of the beam is halogen, another is HID. If you car use H4 type bulb to give both High and Low, you can buy H4-2 or H4-3 HID KIT."