The most common fog light bulb is the H11 halogen bulb, but many vehicles use other bases such as H8, H9, H16, or 9005/9006. Some newer cars use LED fog light modules. Always check your vehicle’s manual or the existing bulb to confirm the correct type for your model.
Fog lights are designed to illuminate the road just ahead in poor visibility, such as fog or heavy rain. Because manufacturers choose different bulb bases for different makes and years, the exact bulb type you need can vary widely. Verifying the correct base is essential for proper fit and performance.
Common fog light bulb types
The following list highlights the bulb bases you’re most likely to encounter in factory fog light assemblies. Exact fitment depends on the vehicle, so always verify with your model/year.
- H11: A widely used halogen fog light bulb base found on many modern cars; typically a single-filament design with a two-prong connector.
- H8 and H9: Alternative halogen bases used by various brands; they differ in size and brightness and appear in different fog light configurations.
- H16 (also sold as 5202 in some markets): Another common halogen option for newer fog light housings, offering solid fog light performance.
- 9005 and 9006: Bases seen on some older or sport-oriented models; can be used for fog lights in certain assemblies depending on wiring and housing.
- H3 and other less common bases: Some European and aftermarket fog lights use these bases; always confirm the socket type before purchasing replacements.
When replacing, match the original base and wattage to ensure proper fit and electrical compatibility. Upgrading to LEDs or other technologies may require adapters or resistors to prevent circuit issues or flickering.
LED fog light options
LED fog light bulbs and complete LED assemblies are available for many of the common bases (including H11, H8/H9, H16, and 9005/9006). They offer longer life and brighter output, but may require CAN-bus compatibility, heat management, and sometimes resistors to avoid fault codes. Always verify compatibility with your vehicle’s electrical system and local regulations.
Choosing the right bulb for your vehicle
To select the correct bulb, start with your owner’s manual or inspect the current bulb’s markings. Choose the same base and wattage as originally specified. Consider color temperature (fog lights are typically around 3000K–5000K for visibility in fog) and ensure the installation won’t create glare for oncoming drivers. If unsure, consult a parts specialist or a professional installer for your exact make/model/year.
Regulations and safety notes
Front fog light regulations vary by country and region, including permissible colors, brightness, and usage. Some places restrict aftermarket bulbs to certain specifications. Always ensure replacements comply with local laws and that installation does not cause unsafe glare or misalignment.
Summary
Fog light bulb choices are model-specific. The most common base is H11, but many vehicles use H8, H9, H16 (5202), or 9005/9006, with LEDs available for many of these bases. Always verify the correct base and wattage for your vehicle, and consider regulatory compliance and electrical compatibility when upgrading.
Do I need a H4 or H7 bulb?
The H7 is a single filament bulb that will operate only one headlight beam, where as the H4 is a twin filament bulb that works both the low and high beams in one. If you are able to check in your vehicle handbook it should state whether your vehicle uses one of these fittings.
Can I use H11 for fog lights?
H11 LED BULBS | HEADLIGHT AND FOG LIGHT BULB REPLACEMENTS
Upgrading your vehicle to H11 LED Bulbs significantly increases the light output of your headlights or fog lights.
Is H7 a fog light bulb?
The H7-size bulb is used as a head light or fog light bulb by many major automotive brands including Kia, Ford, Hyundai, Dodge, and more.
What type of bulb for fog lights?
Fog lights can use halogen, HID/xenon, or LED light bulbs, and each type has its advantages. There are fog lights designed for both the front and rear of most vehicles.