Note: This is a guide for replacing North American vehicle bulbs. Sourced data can vary due to trim packages, manufacturer, and after-market modifications.

Determining the appropriate bulb size for your car is crucial before purchasing LED headlight bulbs. To check your headlight bulb model, you can:

1. Consult Your Owner’s Manual: The manual usually specifies the bulb type for your vehicle.
2. Inspect the Bulb: Remove the existing bulb from the socket and look for markings on the base. These often indicate the model number (like H11, 9005, etc.).
3. Use Boslla Bulb Finder by searching vehicle year, make, and model.