What is the difference between Single Beam and Bi-Xenon Kits?
Single Beam kits are for cars that don?t have the High and Low Beam function in one bulb. If your car takes the H4 or 9007 bulbs, then you have the option of purchasing either the Single beam, Dual Beam or a Bi-Xenon kit. Unless your car takes the H4 or 9007 bulb, your only option is the Single Beam kit. Bi-Xenon = High Beam in Xenon and Low Beam in Xenon.
