To find the correct bulbs, you need to do one of the following:
* Check your owner's manual: This is the best resource. It will list all the bulbs and their specifications (e.g., H7, 921, etc.).
* Look at the bulb itself: If you can access a bulb you need to replace, the bulb's base will usually have a code printed on it. This code tells you the type of bulb.
* Use an online parts lookup tool: Many websites (like AutoZone, Advance Auto Parts, etc.) allow you to select your vehicle's year, make, and model, then search for replacement bulbs. You'll need to specify the light type (headlight low beam, taillight, etc.).
* Go to an auto parts store: The staff can help you identify the correct bulbs based on your vehicle's information.
In short: Don't just ask "what light," but specify *which light* you're trying to replace.