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Interchangeable Equivalents

H11 vs H8

The H11 and H8 are physically interchangeable bulb types that share the same base and socket design. Both bulbs fit the same housing, making them direct substitutes in most applications. The H11 is found in 1,323 vehicles, commonly in the Fog Light and Low Beam position, while the H8 appears in 466 vehicles, typically used for High Beam and Fog Light. Although they fit the same socket, there may be minor differences in wattage or light output between the two. Below we break down the specifications, compatible vehicles, and practical swap guidance to help you choose the right bulb.

Vehicles Using H11

1,323

Vehicles Using H8

466

Use Both

72

Specification Comparison

FeatureH11H8
Mount Typequarter-turn bayonet mount that locks with a short twistquarter-turn bayonet mount similar to H11
Dual FilamentNo (single filament)No (single filament)
InterchangeableYes, fits H8 socketYes, fits H11 socket
Also Known AsH8, H9, H16H11, H9

Can You Swap H11 and H8?

The H11 and H8 share the same physical base and socket type, which means you can use either one in a housing designed for the other. However, there may be slight differences in rated wattage or light output between the two. For the best results, use the specific bulb type listed in your vehicle's owner's manual. If your manual specifies H11 but you can only find H8, it will fit and work safely. When upgrading to LED, look for a kit that lists both H11 and H8 compatibility.

Shop H11 Bulbs on Amazon
Shop H8 Bulbs on Amazon

Vehicles Using Both H11 and H8

We found 72 vehicles that use both H11 and H8 bulbs in different positions. Common makes include Audi, BMW, Buick, Ford. These vehicles typically use one bulb type for the low beam and the other for the high beam or fog light, so you may need both sizes when doing a full lighting upgrade.

ModelYearH11 PositionH8 PositionView
A5 Quattro2009Fog LightDaytime RunningDetails
A5 Quattro2008Fog LightDaytime RunningDetails

ModelYearH11 PositionH8 PositionView
1 Series2011Fog LightDaytime RunningDetails
1 Series2010Fog LightDaytime RunningDetails
1 Series2009Fog LightDaytime RunningDetails
1 Series2008Fog LightDaytime RunningDetails
1 Series M2011Fog LightDaytime RunningDetails
128i2011Fog LightDaytime RunningDetails
128i2008Fog LightDaytime RunningDetails
135i2011Fog LightDaytime RunningDetails
M32013Fog LightDaytime RunningDetails
X52013Fog LightDaytime RunningDetails
X52012Fog LightDaytime RunningDetails
X52007Fog LightDaytime RunningDetails
X62009Fog LightDaytime RunningDetails

ModelYearH11 PositionH8 PositionView
Encore2020Low BeamFog LightDetails

ModelYearH11 PositionH8 PositionView
EcoSport2020Low BeamFog LightDetails
Fusion2020Low BeamFog LightDetails

ModelYearH11 PositionH8 PositionView
CR-Z2016Low BeamFog LightDetails
HR-V2022Low BeamFog LightDetails

Showing 20 of 72 vehicles.

Frequently Asked Questions

Yes, the H11 and H8 share the same base design and are physically interchangeable. Either bulb will fit in a socket designed for the other. However, check your owner's manual for the recommended type, as there may be minor wattage differences.

The H11 and H8 are essentially the same bulb with different industry designations. They share identical base dimensions and socket fitment. The main difference may be in rated wattage or intended application, but physically they are interchangeable.

In standard halogen form, brightness depends on the specific bulb's rated wattage rather than just the size designation. Both H11 and H8 are available in halogen, LED, and HID versions. LED upgrades for either size typically produce 200-300% more light than the stock halogen. The key is choosing a quality LED kit in the correct size for your socket.

Our database shows 72 vehicles that use both H11 and H8 in different positions. This is common when one size is used for low beams and the other for high beams or fog lights.

Both H11 and H8 bulbs are widely available at auto parts stores and online retailers like Amazon. LED upgrade kits typically cost $25-$60 per pair, while standard halogen replacements run $10-$30 per pair.
9005 vs H119006 vs H119012 vs H11H11 vs H16H11 vs H7H11 vs H9H8 vs H9