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Car headlights are one of the very important devices for drivers when driving, especially driving at night.
However, not all drivers know how to adjust car headlights properly, leading to difficulties in driving.
Car headlights are lighting devices that help drivers have a wider view.
However, unlike other types of lights, headlights can create a strong and concentrated beam of light, capable of illuminating 100m or more, helping drivers to observe well and easily detect obstacles or vehicles traveling in the opposite direction.
For optimal illumination, headlights can be used in combination with low beams - low beams.
Thereby, helping the driver to control speed and handle all unexpected situations on the road.
There are four most popular types of car headlights on the market today: halogen, xenon - HID, LED and laser.
The headlight beam adjustment button will help the driver adjust the headlight beam to suit the vision and not affect other vehicles.
There are many drivers who do not adjust their headlights properly, causing safety risks for the driver and others around them when driving. Here is how to adjust headlights properly:
For xenon headlights:Some cars are equipped with xenon lights, the driver can adjust the light beam according to the load and speed of the car. Therefore, these cars are often equipped with a rotary knob to adjust the headlights with control buttons from 0 to 4. When meeting oncoming cars or handling situations on your journey, the driver only needs to control from 0 to 4 depending on the desire.
For halogen headlights:For halogen headlights, the driver can adjust them with the 3-point screws behind the lights with the symbols U - D and L - R.
When the U – D screw is pressed, the headlights will point up or down.
When L-R is pressed, the headlights will shine to the right or left.
Step 1: Balance the vehicle by inflating the tires evenly and cleaning the lenses.
Before adjusting the car headlights, you need to ensure the balance of the car by pumping the tires just enough, not too tight or too loose. Thus, the adjustment of the headlights will be accurate.
In addition, after placing the vehicle in a balanced position, you need to clean the outside lenses, only then will you be able to observe and align the light beam most accurately.
Step 2: Determine the location of the light beam
To accurately determine the position of the headlight beam, you need to perform the following operations:
Park the vehicle on a flat, level surface. Keep a distance of 5m to 7m from a wall or barrier to test the lights.
You draw a vertical line down the center, perpendicular to the ground (or floor) on the wall or screen.
Align the centerline of the vehicle so that the centerline of the vehicle is opposite the line you just drew above to accurately determine the position of the headlight beam.
Step 3: Measure the distance to the center of the car's headlights
To align the car headlights properly, you cannot skip the step of measuring the distances to the center of the headlights on the car. These are the distances from the center of the headlights and the height from the ground to the center of the headlights on the car. The distances you get are the basis for the next steps.
Step 4: Draw the cut-of line
On the wall or screen, you draw an out-of line. The height of this line must satisfy the requirement that it is lower than the height of the lamp by about 1-2 inches, equivalent to about 2.56 - 5.08cm.
Step 5: Adjust the height of the beam and the heart of the lamp
The headlight beam adjustment knob is a rotating disc with a headlight symbol, numbered from 0 - 3, usually located on the dashboard, to the left of the steering column.
Start the car at idle speed, turn on and adjust the lights according to the instructions so that the beam angle and height meet the standard. The height of the beam must be equal to the height of the bulb on the car and the beam angle must be about 10-15 degrees.
Step 6: Adjust the driver's side light beam so that the height and beam angle meet the standards.
After performing the above steps, you start the car slowly. Then, you turn on and adjust the lights. You should adjust so that the light concentration and the height of the light beam meet the correct standards. Remember one thing, the height of the light beam you adjust must create a balance with the height of the bulb on the car and the light concentration is about 10 - 15 degrees.
Step 7: Adjust the side light beam so that the height and focus of the light meet the standards.
Next, you adjust the beam of the driver's side light. This adjustment also needs to be adjusted so that the height and focus of the light meet the standards.
Step 8: Check the two beams
After adjusting the light beams on each side, turn on both lights and observe whether the two light beams have the same height and light convergence. If the two light beams are equal, it is okay.
Step 9: Test
After adjusting the lights on each side as in the steps above, turn on both lights to check if the height and convergence of the two beams are equal. If the results are equal, the adjustment is successful. If not, proceed to adjust them further to reach the standard and be equal.
When adjusting car headlights, it is necessary to adjust the light's convergence to low beam mode.
When checking the headlight torsion, to ensure accuracy, cover the low beam or disconnect the connector.
When checking the driver's side headlight, you need to cover the passenger side headlight. Conversely, when checking the passenger side headlight, you cover the driver's side headlight.
You should not cover your car's headlights for too long, the covering time should be less than 3 minutes to ensure that the headlights do not burn out because covering for too long generates a lot of heat.
After following a series of steps as instructed above, an important step you cannot skip is to test drive the vehicle and check if the headlight system is working properly.
To use the headlights most effectively, you should regularly check the lights for damage or burned bulbs to replace or repair them promptly. Occasionally, you also need to clean and wipe the lights to ensure that the brightness of the lights is not obscured by dirt.
Headlights should be used on highways, avoid using them on two-way roads, as they can often blind oncoming drivers and prevent them from seeing the road.
According to VTC News
