Why do headlights have yellow light?

1 Answers
StSilas
07/30/25 9:13am
Because yellow light has strong penetration, the actual power of general headlights needs to be 5w, above 1000 lumens, and yellow light between 3000k and 4200k is recommended. Here is some extended information about car headlights: Function: The function of car headlights is to provide illumination for night driving. Car headlights are also known as car front lights or car LED daytime running lights. As the eyes of a car, they not only relate to the external image of a car owner but are also closely linked to safe driving at night or under bad weather conditions. Types: Car lights can be divided into two types by purpose: lighting and auxiliary. Among them, only the headlights and some fog lights equipped on cars serve the purpose of lighting, while the rest are auxiliary lights.
Was this review help?
19
0
Share
More Forum Discussions

Can You Tow a Car on the Highway?

You can tow a car on the highway, but you need to hire a professional towing team. Here are the details about towing on the highway: 1. Police Assistance: If your car breaks down on the highway, you can call 110 to seek help from the police. In general, the police will help contact a towing team for rescue. 2. Insurance Company Services: If your vehicle has the appropriate insurance, you can contact your insurance company after a breakdown on the highway. Some towing services provided by insurance companies offer free towing within a specified mileage limit. Additional charges will apply if the mileage is exceeded. 3. Precautions When Towing: The vehicle owner should park correctly, ensure the safety of personnel, and warn other vehicles. Additionally, asking friends or relatives to tow the car is illegal. Towing on the highway requires hiring a professional team.
3
2
Share

What is the difference between tire pressure warning and tire pressure display?

Tire pressure display and tire pressure warning differ in that the tire pressure display allows you to visually see the tire pressure, while the tire pressure warning is just an alarm system that alerts you when the tire pressure is too high or too low. Abnormal tire pressure can occur for the following reasons: Abnormal tire pressure: Generally, an alarm will sound if the pressure is below 1.8 bar or above 3.0 bar. In this case, tire inspection and pressure adjustment are required. Tire pressure monitoring not reset: After inflating the tires, if the tire pressure is not reset in time, the tire pressure monitoring system will still record the previous data, causing the tire pressure monitoring indicator light to turn on. Simply reset the tire pressure in this case. Damaged tire pressure sensor: The tire pressure sensor, which monitors tire pressure, is directly installed inside the tire and connected to the tire inflation valve. If the sensor is damaged during driving due to impact, it can also trigger the tire pressure fault light. For sensor damage issues, the only solution is to replace it with a new component.
13
0
Share

How to Identify Genuine or Fake Engine Oil?

You can determine whether engine oil is genuine or fake by examining the packaging appearance, observing the oil's appearance, smelling its odor, and conducting a freezing test. The detailed methods are as follows: 1. Examine the packaging appearance: Genuine new oil packaging is clean and neat, free from oil stains or dust. The cap is a one-time seal with a tin foil under the opening, which bears the manufacturer's special mark. If these features are missing, the oil might be fake. 2. Observe the oil's appearance: Pour out the oil and observe it. Genuine oil is light in color, transparent, free from impurities, suspended particles, or sediment, with a mild smell and good fluidity when shaken. Fake oil may be darker in color, contain impurities or sediment, have a strong and irritating smell, poor fluidity when shaken, or show a stringy texture when touched. 3. Smell the odor: Genuine oil has a very mild smell, resembling crystal wax fragrance, while fake oil is highly irritating. Oils of the same viscosity grade have a slight hand viscosity at room temperature, whereas inferior oils feel sticky. 4. Freezing test: Place both oils in an environment at -21 degrees Celsius for a period (a few hours). You will notice a significant difference in their fluidity: genuine oil still flows well, while fake oil almost solidifies.
9
0
Share

What does full coverage car insurance include?

Typically, full coverage car insurance includes compulsory traffic insurance (CTPL) and several basic coverages such as vehicle damage insurance, third-party liability insurance, passenger liability insurance, glass breakage insurance, and comprehensive theft insurance. It also includes additional coverages like spontaneous combustion insurance, water damage insurance, and scratch insurance, along with special no-deductible insurance. Below are the details of each coverage: 1. Compulsory Traffic Insurance (CTPL): A mandatory insurance required by the state, with the second-year premium adjusted based on whether the owner was involved in at-fault accidents in the first year; 2. Vehicle Damage Insurance: Covers the loss of your own vehicle, with the coverage amount generally matching the vehicle's value; 3. Third-Party Liability Insurance: In case of an insured accident, the insurer compensates for third-party bodily injuries and property losses; 4. Theft Insurance: Covers losses caused by the vehicle being stolen, robbed, or snatched; 5. Passenger Liability Insurance: Compensates for injuries or deaths of passengers in the vehicle in case of an accident; 6. Spontaneous Combustion Insurance: Covers losses due to fires caused by vehicle circuits, wiring, fuel lines, or friction during operation; 7. Water Damage Insurance: Covers engine damage due to water ingress while driving; 8. Scratch Insurance: Covers scratches on the vehicle body without obvious collision marks, with compensation provided as per policy terms; 9. Glass Insurance: Covers the cost of repairing or replacing windshield or window glass if broken separately; 10. No-Deductible Insurance: After an insured accident, the deductible amount that the owner would normally bear will be covered by the insurer if this insurance is purchased.
10
0
Share

Can the ETC card be removed at will?

The ETC card can be removed, but the ETC device will not function without it. According to Article 9 of the "Rules for the Use of the Non-Stop Rapid Passage System," the ETC card must be inserted into the OBU device for normal operation; otherwise, user information cannot be read. If the card is removed, you can use the manual lane and have the staff swipe the card. When the ETC card is inserted into the OBU device, a prompt sound will indicate that the device is activated. Without the card, the device remains in a dormant state and cannot recognize vehicle information at toll stations, so removing the card renders the ETC unusable. ETC is the Electronic Toll Collection system, also known as the Automatic Road Charging System. It is a specialized road tolling method typically used on highways, toll bridges or tunnels, and certain urban road sections to alleviate traffic congestion. ETC Billing Principle: Highways have one or more ETC lanes. Through dedicated short-range microwave communication between the vehicle's onboard electronic tag (installed on the windshield) and the microwave antenna in the ETC lane, the system uses computer networking technology to settle payments with banks. This allows vehicles to pass through toll stations without stopping, operating on a "pass first, deduct later" principle. Benefits of Installing ETC: Time-saving: Eliminates the hassle of waiting in queues; Green and eco-friendly: Reduces noise and exhaust emissions by enabling vehicles to pass toll stations without stopping; Reduced wear and tear: Lowers fuel consumption and vehicle wear by minimizing frequent starts and stops; Improved efficiency: ETC lanes can theoretically increase traffic flow by 2-3 times, making traditional ETC faster, more advanced, and more high-tech. Compared to license plate payment, ETC technology is more mature and advantageous. More policy support: The State Council's "13th Five-Year Plan for the Development of a Modern Integrated Transportation System" explicitly states the goal of "achieving interoperability of transportation cards in key city clusters by 2020 and significantly increasing the proportion of vehicles equipped with ETC." It also sets a target of "50% ETC usage rate for road passenger vehicles by 2020" in the main indicators of the "13th Five-Year" comprehensive transportation development plan. Future possibilities: In addition to continuously improving the convenience of ETC installation and usage rates for passenger vehicles, future efforts will promote ETC adoption for trucks and explore deeper integration of the ETC system with smart transportation developments such as vehicle-to-vehicle communication and vehicle-road coordination. This will provide comprehensive travel services for vehicle owners, meaning more application scenarios will support ETC usage.
15
5
Share

What procedures are required for vehicle exterior color change?

To apply for changing the color of a motor vehicle's body, the following documents must be submitted according to the "Road Traffic Safety Law": "Motor Vehicle Change Registration Application Form"; identity proof and copies of the motor vehicle owner and agent; motor vehicle registration certificate; payment of all fines before color change; motor vehicle driving license. If it is a company vehicle, the organization code certificate of the company is also required. According to Article 6 of Chapter 2 of the "Road Traffic Safety Law", if the color change area of a motor vehicle does not exceed 30%, there is no need to go through the change registration. Conversely, if it exceeds 30%, it must be filed and registered within 10 days after the vehicle color change. Precautions for vehicle color change: Before changing the color of a motor vehicle, it is necessary to consult the vehicle management office where the vehicle is registered to check whether the region allows the use of film to change the vehicle color. If the region does not support this method, the filing procedure cannot be processed after the change, and the film must be completely removed to restore the original color of the vehicle. In addition, according to the "Motor Vehicle Registration Regulations", owners are allowed to first change the vehicle color, install body kits, replace the engine, etc., and then apply to the vehicle management office for change registration. According to Article 10, registered motor vehicles must apply for change registration in the following cases: Change of body color. Replacement of the engine. Replacement of the body or frame. Replacement of the entire vehicle due to quality issues. Change of use nature, such as commercial vehicles changed to non-commercial vehicles or vice versa. The motor vehicle owner's residence moves out of or into the jurisdiction of the vehicle management office. Additionally, according to Article 15 of the "Road Traffic Safety Law of the People's Republic of China": Police cars, fire engines, ambulances, and engineering rescue vehicles must spray emblem patterns, install alarms, and emblem lights as required. Other motor vehicles are not allowed to spray, install, or use the above-mentioned vehicles' exclusive or similar emblem patterns, alarms, or emblem lights. According to Article 56 of the "Motor Vehicle Registration Regulations", if the body color is changed without going through the change registration as required, the public security traffic management department will issue a warning or impose a fine. The vehicle may also be detained and required to restore the original body color.
19
3
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.