What is the difference between halogen projectors and xenon projectors?

[DeGarrett]

The differences between halogen projectors and xenon projectors lie in their curvature and the ability to change beams. Below are the detailed explanations: Difference in curvature: Since the light source of a halogen lamp is a single point, the halogen projector has a constant curvature. In contrast, the light source of a xenon lamp is a short line approximately 20mm in length, so its projector has a variable curvature. If you retrofit xenon lamps without replacing the xenon projectors, the light will scatter, resulting in poor illumination and severely impairing the visibility of oncoming drivers. Difference in beam-changing mechanism: Halogen projectors lack a beam-changing mechanism and are generally divided into low-beam and high-beam projectors, with relatively simple functionality. Xenon projectors, on the other hand, are bi-xenon projectors that can switch between low and high beams using a beam-changing motor on the projector.