Headlights are an essential part of a car. Their task is to illuminate the roadway, which facilitates safe and fatigue-free driving. Strong and bright headlights increase the road’s visibility, and the driver can clearly see what is in front of the car. Without car headlights, driving at night is dangerous. Drivers may hit people or vehicles on the road leading to accidents and fatal injuries. The headlights should always be in working condition. A faulty headlight is fixed immediately to keep the driver and the vehicle safe. Though there are many types of headlights, most cars have headlights with halogen bulbs.
Types of headlights
Halogen headlights are the most widely used headlights. Halogen bulbs have halogen gas inside them, extending tungsten the filament’s life, and they are cheap and easily replaced in the event of failure. Halogen bulbs are not very efficient because most energy is wasted in heat instead of light. Moreover, halogen bulbs are not as bright as LED or Xenon bulbs.
Xenon headlights have no filament and work by creating a high voltage area between two electrodes. They are also known as High-Intensity Discharge lights. Xenon bulbs take some time to reach their maximum brightness because they require time to heat up. Once they get heated, they emit bright bluish-white light. The light helps drivers see better and farther while driving. They are bright and last longer than halogen bulbs but not as long as LEDs.
LED lights don’t need any warm-up time and don’t emit heat, but they are highly energy-efficient and produce bright light. They can fit into any headlamp and brighten up the place immediately. The lights require less power to operate and have less maintenance. The visibility of LED headlights is high in foggy and dusty environments. They are available in different shapes and suit all brands of cars. They need less maintenance and put less strain on the driver’s eyes.
Matrix headlights are known as pixel lighting. It is made of many individual LEDs which are independently controlled. The light beams are designed to create horizontal and vertical light strips. They are reliable, provide instant illumination, and have high energy efficiency and ultra-low latency. The headlights are versatile, give high coverage and are used even when other vehicles drive toward it. The windscreens have cameras to detect the oncoming traffic and the control unit immediately turns off individual segments to protect on-coming drivers from the bright light.
Laser lights are the most advanced headlights on the market and are the best and the most expensive lights. The headlights have one or more laser diodes mounted inside. They energise the gas with the help of lasers and make it glow highly bright. They produce powerful, vibrant white light. The throw of light from laser lights is much better than other headlights. They illuminate nearly 600 metres of the road, and these lights are found on expensive cars.
When to change the headlights
A car’s headlight needs to be changed when the light produced is insufficient to see the road in the dark. The first step in maintaining the headlights is maintenance. The headlights should always remain clean and polished. All defective and broken headlights and their parts need to be replaced immediately. Most headlights are replaced at least once during the car’s lifetime.
Most car headlights become dim over time, and replacing them in time ensures that the driver has sufficient lighting to drive safely on poorly lit roads. The headlights play a significant role in helping the drivers see the road well and allowing other people to see the car. They should be taken care of and kept in perfect condition to experience a safe and comfortable ride.