What are the models of car headlight bulbs?
2 Answers
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.
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.