Distinguishing types of lights on cars, you need to know?

The car lighting system is an important part of ensuring safety and increasing visibility when driving in low light or bad weather conditions. The lights on cars play an important role in illuminating the road, providing information to other vehicles and helping to increase the vehicle’s visibility in the dark and in difficult conditions. In this article, we will learn about common types of lights on cars, their functions and the benefits they bring.


Car headlights

Headlights are one of the most important lights on a car. They are used to illuminate the front of the vehicle and help the driver see the road and obstacles clearly in low light conditions. Headlights usually have two modes: high beam and low beam. High beam headlights are used when there are no other vehicles in range, allowing for farther and wider illumination. Meanwhile, near headlights are used when encountering oncoming vehicles or when entering residential areas, helping to avoid glare and

Tail Lights

Taillights are lights located at the rear of the vehicle and are responsible for lighting and communicating the vehicle’s position to other vehicles behind. Tail lights include main tail lights (brake lights), turn signals (turn signals) and auxiliary rear lights (rear fog lights).

Car tail lights
  • Main taillights (brake lights): The main taillight lights up strongly when you brake, signaling to vehicles behind that you are slowing down or stopping. This is an important factor to increase visibility and reduce the risk of a rear-end collision.
  • Rear fog lights: Secondary rear lights are used in foggy or heavy rain conditions. The dimmed light of the auxiliary taillight increases rear visibility and reduces the risk of accidents due to fog or heavy rain.

Fog Lights

Fog lights are lights specifically designed for use in foggy, heavy rain or poor visibility conditions. Fog lights have wide but low light, helping to minimize reflections and increase visibility in difficult conditions such as fog, bad weather, etc.

Fog lights

Interior lights

Cup lights are lights placed inside cars, illuminating the interior space. Including: Dome light, Reading Light, Footwell light and other lights in the car. Cup lights help create a more airy and convenient space when driving.

Interior lights

UnderBody Lights

Undercarriage lights are lights installed under cars, creating beautiful lighting effects and increasing the aesthetics of the car. Undercarriage lights can often change colors and lighting effects, creating a fun and stylish atmosphere for the vehicle. They are often used in exhibitions, meetings and special events.

Turn signals

Turn signal lights are an important part of the car lighting system. The main function of the turn signal light is to announce the vehicle’s intention to turn left or right to other vehicles on the road. Turn signals are usually placed on both sides of the vehicle, front and rear.

Using turn signals properly is very important. Before making a left or right turn, make sure to turn on your turn signal long enough for surrounding vehicles to recognize your intention. After completing the manoeuvre, turn off the turn signal so that other drivers are not confused.

Car turn signal lights

Turn signals are used not only when turning left or right, but also when changing lanes, changing direction or stopping. This helps create a clear message and reduces the risk of collisions.

When using turn signals, pay attention to the time and location of turning on the turn signals to avoid misunderstanding other vehicles. Make sure your turn signals are working properly by checking them regularly and replacing damaged bulbs if necessary.

Emergency Lights

Emergency lights, also known as alarm lights or warning lights, are special lights used in emergency situations. They often have characteristic colors such as red, blue or yellow to attract the attention of people around them and warn of special situations.

Emergency lights

Emergency lights are usually mounted on the front of the vehicle or above the nose of the vehicle, and when turned on, they will glow continuously or flash clearly. Situations where emergency lights are commonly used include:

  • In case of an accident or collision: When an accident or collision occurs, turning on the emergency lights helps warn other vehicles of a dangerous situation and helps increase safety for road users.
  • When encountering a technical problem: In case the vehicle has a technical problem such as engine failure, broken tires or an unusual need to stop, turn on the emergency lights to help attract the attention of passersby and increase the ability to recognize the vehicle. Know the special situation you are facing.
  • When stuck in an emergency situation: Emergency lights are also used to warn and request help in case you are stuck in the car or have trouble moving.

When using emergency lights, make sure you only use them in situations where it is absolutely necessary and in compliance with traffic regulations and rules. At the same time, after the emergency situation is over, turn off the emergency lights so as not to mislead or disturb people around you.

Should car lights be adjusted?

Adjusting car lights is a personal decision and depends on each person’s preferences. However, before deciding on car lights, you should consider the following factors:

  • Legal regulations: Check local legal regulations regarding car lighting. Some countries or regions have strict regulations regarding changing or adjusting car lights. Violation of this regulation may result in fines or legal penalties.
  • Traffic safety: Car lights play an important role in providing light and increasing your visibility in low light conditions. When adjusting vehicle lights, make sure that the light does not cause loss of visibility or distract the driver or other people on the road.
  • Performance and quality: When adjusting car lights, choose lights with good performance and quality. Good car lights will provide strong, focused and uniform light, helping to improve visibility and ensure safety for you and those around you.
  • Professionalism and technique: Adjusting car lights requires specialized knowledge and skills. If you do not have experience or are not confident in adjusting lights, go to reputable and professional repair facilities to perform the lamp adjustment process.
  • Compatible with the vehicle’s electrical system: When upgrading your vehicle’s lights, make sure that the vehicle’s electrical system can support and be compatible with the new lights. Use suitable light kits and ensure proper connection and installation to avoid damage or interference with the vehicle’s electrical system.

Are car lights allowed to be registered?

With the new regulations, vehicles with modified lights can still pass inspection, as long as they meet technical standards such as intensity, light beam or beam angle.

In Circular 2/2023 of the Ministry of Transport, in addition to exempting new vehicles from registration and increasing registration cycles, changes in vehicle light inspection also help users have more space to upgrade, customize, and customize their vehicles. mine. Accordingly, some specific changes are as follows:

In the old regulations (Circular 16/2021), vehicle lights that are “incorrect type” are considered an important defect or damage (MaD), meaning the vehicle will not be issued an inspection certificate. However, this content is no longer in the new regulations, meaning that vehicle lights do not necessarily have to be of the “correct type” as the original manufacturer’s to be approved for inspection.

Read more: Are car lights allowed to be registered?

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