What are the models of car headlight bulbs?

2 Answers
McSamuel
07/28/25 4:21pm
Car headlight bulb models include: h1, h3, h4, h7, h11, etc. The methods to check the model specifications of car headlight bulbs are: 1. Check the bulb removed from the car, as there is a specific model marked at the bottom of the bulb, and the headlight assembly is labeled with the specific model of the car bulb; 2. Flip through the vehicle maintenance manual to find the list of consumable parts in the vehicle maintenance manual. The method for replacing car headlight bulbs is: 1. Open the engine hood and locate the lamp cover behind the headlight assembly; 2. Unscrew the lamp cover; 3. Pull out the lamp socket with the power cord, pressing the lamp with your hand while pulling to avoid damage; 4. Release the lamp socket clip to remove the lamp, then install the new bulb in place.
Was this review help?
16
1
Share
LondynFitz
08/11/25 11:14pm
After driving for so many years, I've come across quite a few headlight bulb models, with common ones including H1, H3, H4, H7, and H11. The H4 is the standard for older cars, integrating both high and low beams into one unit; the H7 is most widely used in modern vehicles, featuring a simple structure that's easy to replace; the H11 is commonly found in SUVs and is suitable for both halogen and LED modifications. The differences in models mainly lie in the base interface and wattage—for example, the H4 follows the 9003 standard with 55 watts, while the H7 has a single-filament design at around 55 watts. When selecting bulbs, always check your vehicle's manual or VIN code for compatibility first—don't swap them randomly, as improper bulbs can cause light scattering and compromise visibility safety. Xenon lights use D-series models, but retrofitting them requires installing a ballast, making them less hassle-free than factory halogen bulbs. Regularly inspect bulbs for aging and replace them promptly to ensure safer nighttime driving.
Was this review help?
2
1
Share
Expand All
More Forum Discussions

Can You Drive in Platform Shoes?

It is best not to drive in platform shoes, as they can reduce foot sensitivity, impair judgment, and increase the risk of accidents. Here are the details: 1. Impact of high heels on driving: High heels generally come in three types—stiletto heels, wedge heels, and thick-soled chunky heels—each posing different hazards while driving. Wearing stiletto heels can make it easy for the brake pedal to get stuck. Wedge heels, being quite high, prevent normal pedal operation, and even when fully depressed, sudden braking or forceful pressing can easily lead to ankle twists. Thick-soled chunky heels are equally problematic, as they significantly reduce foot sensitivity and make it difficult to gauge pedal depth, often resulting in insufficient or excessive operation. 2. Impact of driving in sandals: The braking distance when wearing sandals is 4.44 meters, longer than when wearing 6 cm high heels, making it even more dangerous. Flat-soled sneakers are the most suitable for driving, preferably those with a heel height of less than 1.5 cm.
11
0
Share

Why is there no response when stepping on the clutch to start the Dongfeng 580?

The reasons why the Dongfeng 580 does not respond when stepping on the clutch to start are as follows: 1. Excessive carbon deposits: This is mainly due to excessive carbon deposits on the idle speed motor, intake tract, intake valves, and combustion chamber. 2. Abnormal combustion: Due to excessive carbon deposits and dirt in the intake tract, the cross-sectional area of the air passage changes, causing the air-fuel mixture to be too rich or too lean, leading to abnormal combustion or engine shaking after starting, or even failure to start. Alternatively, it may be due to issues with the fuel injectors, such as leaks or excessive carbon deposits, causing the air-fuel mixture to be too lean during startup and making it difficult to start. 3. Faulty carbon canister: Additionally, if the carbon canister or carbon canister solenoid valve malfunctions, it can also lead to difficulty in starting.
13
3
Share

What Causes the Clicking Sound When Turning the Steering Wheel After Replacing the Shock Absorber?

After replacing the shock absorber, the steering wheel may produce abnormal sounds for the following reasons: 1. Damaged turn signal return spring causing noise: If the sound occurs only after activating the turn signal and then turning the steering wheel, it is the sound from the return spring of the turn signal auto-return mechanism. This sound is normal and is designed for the convenience of the driver. 2. Noise from the steering column dust cover: Whether stationary or driving, if you hear a sound coming from below the steering wheel when turning it, you should check the steering column dust cover. Lack of lubrication in the dust cover can cause dry friction sounds. Applying some grease inside the dust cover will eliminate this noise.
10
3
Share

What documents are required for annual inspection of a car?

"Motor Vehicle License Plate Application Form", original copy of the motor vehicle driving license, motor vehicle compulsory traffic accident liability insurance certificate, vehicle and vessel tax payment certificate, original copy of the motor vehicle safety technical inspection certificate, etc. Below is the relevant introduction about the annual inspection of cars: 1. Rules for the annual inspection of cars: According to Article 16 of the "Regulations for the Implementation of the Road Traffic Safety Law", which came into effect on July 1, 2018, motor vehicles should undergo safety technical inspections according to the following periods from the date of registration: passenger vehicles for business use should be inspected once a year within 5 years, and once every 6 months after 5 years, etc. 2. Rules for the annual inspection label of cars: From June 20, 2020, the electronic service for motor vehicle inspection labels has covered the whole country. The electronic certificate of motor vehicle inspection labels is issued through the national unified internet traffic safety comprehensive service platform. The owner of the motor vehicle can apply for the electronic certificate of motor vehicle inspection labels through the internet traffic safety comprehensive service platform or the "Traffic Management 12123" mobile App.
1
2
Share

What Causes Steering Wheel Vibration at 110 km/h?

Steering wheel vibration at 110 km/h causes: 1. During driving, collision may deform the tie rod and steering linkage: Worn ball joints or irregular tire wear can increase or decrease toe-in. 2. Damaged steering damper: Oil leakage or deformed front suspension springs also affect stability. 3. Loose wheel hub bearings or severely worn steering knuckle ball joints: Result in inaccurate front wheel alignment. 4. Loose lateral thrust rod ball joint or bracket: Causes unstable driving. 5. Unbalanced wheels: Lost wheel balance weights or deformation may cause front-end wobble during high-speed driving, leading to steering wheel vibration.
4
3
Share

What is the unit of measurement for car speed?

There are two units of measurement for car speed: km/h and mph. In China, the unit used is km/h. 1mph equals 1.609344km/h, and 1km/h equals 0.6213712mph. The commonly mentioned horsepower is not a unit of car speed. More details about car speed are as follows: 1. Introduction: Japanese, Korean, and German cars typically use kilometers per hour (km/h) to indicate speed, while American cars generally use miles per hour (mph). The unit used depends on the country. Many car owners habitually refer to km/h as "miles," but this is not the standard speed unit in China. "Miles" actually refers to mph. 2. Horsepower: Horsepower is an important parameter of an engine, representing the work done by the engine per unit of time. For cars of the same mass, the greater the engine's power, the higher the car's speed. 3. Car speed regulations: Motor vehicles must not exceed the speed limit indicated by road signs. On roads without a central dividing line, the speed limit is 30km/h in urban areas and 40km/h on highways. On roads with only one lane in the same direction, the speed limit is 50km/h in urban areas and 70km/h on highways. When turning, the maximum speed of a motor vehicle must not exceed 30km/h.
10
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.