Why do the low beams look the same whether they are on or off?

[ElliottLynn]

If the low beams appear the same whether they are on or off, it may be due to the height adjustment of the low beams, which can be adjusted at a 4S shop. Alternatively, it could be caused by window tinting film with poor light transmittance, leading to this situation. Below is more information about low beams: 1. Introduction: Low beams are designed for close-range illumination, featuring a wide coverage angle (160°) and short projection distance, with non-adjustable focus. 2. Function: Low beams have a distinct cutoff line between light and dark. Most vehicle low beams illuminate 30-40 meters ahead, with the cutoff line located around 12-18 meters. The area before the cutoff line is brightly lit, allowing clear object recognition, while a 2-3 meter diameter illuminated zone is visible on the ground. The area from the cutoff line to 30-40 meters mainly relies on ground-reflected light, where brightly colored objects can be distinguished. 3. High beams: High beams should only be used when there are no other lighting facilities on the road and no oncoming vehicles. Otherwise, they can severely impair other drivers' vision and even cause traffic accidents.