Use the By Vehicle tab above — select your car's year, make, and model. The tool will display all bulb positions (low beam, high beam, fog light, turn signals, etc.) with the exact bulb codes. You can also check your owner's manual or look at the base of your existing bulb for the code printed on it.

Different manufacturers use different naming systems for the same bulb. For example, 9005 = HB3 = Philips 9005 = Osram 9005 = Sylvania 9005. Cross-referencing ensures you buy the correct bulb regardless of the brand you prefer. Our Cross Reference tab shows ANSI codes alongside Philips, Osram, Sylvania, and GE equivalents.

Yes, in most cases you can upgrade from halogen to LED if the LED bulb is designed for the same base type (e.g., H11 LED replaces H11 halogen). However, some modern vehicles may require CAN bus adapters or load resistors to prevent flickering or dashboard error messages. Always verify local regulations, as aftermarket LED conversions may not be street-legal in all jurisdictions.

H11 and H9 share the same PGJ19-2 base and are physically interchangeable, but they have different power ratings: H11 = 55W, while H9 = 65W. Swapping H11 for H9 can yield about 30% more light output, but may cause glare if used in a housing not designed for the higher output. Always check your vehicle's wiring and housing compatibility before upgrading.

Common fog light bulbs include H11, H8, H16, 5202, H3, and 9006. The exact type depends on your vehicle. Use the By Vehicle lookup above to find your specific fog light bulb. For best fog penetration, choose bulbs in the 3000K (golden yellow) color range.

Dual beam bulbs (also called dual filament) contain two filaments in one bulb — one for low beam and one for high beam. Common dual beam types are H4/9003, 9007/HB5, and H13/9008. Single beam bulbs (like H11, 9005, H7) require separate bulbs for low and high beam functions.

Halogen bulbs typically last 450–1,000 hours of use. HID xenon bulbs last 2,000–3,000 hours. LED bulbs can last 15,000–30,000+ hours. It's recommended to replace bulbs in pairs — if one fails, the other is likely close behind. Dimming or yellowing light output is a sign it's time for replacement.

Yes — Sylvania is the North American brand of Osram. Bulbs sold under the Sylvania name in the US and Canada are manufactured by Osram and are equivalent to Osram-branded products sold in Europe and other markets. Philips is a separate company (Lumileds).