Xenon are metal halide lamps that contain xenon gas.
BI-Xenon that offer both low (dipped) and high (main) beam lighting from a dual headlight system (as opposed to quad headlight system). A Bi-Xenon system eliminates the need for a separate halogen high beam bulb/lense by either moving the xenon bulb within the lense or by moving a shield up and down in front of the bulb (depending on the reflector design) to allow light to escape from the lense in different pattern.
Hope this well help you understand the different by the two.
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.