Xenon and Bi-Xenon headlights are the same in terms of the bulbs that are used. Xenon headlights shift amid two sets of bulbs for high and low beams, while Xenon uses a mechanical system to set the ray of light. Xenon headlights have permanent bulbs.
One pair directed high, and another aimed low. Bi-Xenon headlights utilize two bulbs by using a mechanical system to direct the beam of light. There are two ways to accomplish this. You can move the bulb itself so that it aims the right way, or you can use a fixed bulb with adjustable reflectors that do the same thing. Bi-xenon has one headlight, while Xenon has two, and it has a higher chance of failing compared to Bi-Xeon. If either of the double bulbs in the set dies, the whole thing collapses. Also, Bi-Xenon headlights are cheaper than it’s counterpart, Xenon.