No, H7 and H11 bulbs are NOT the same. While they share some similarities (like being single-filament halogen bulbs and having a similar overall cylindrical shape), they are not interchangeable due to key differences:
Base/Connector:
H7: Uses a PX26d base. It has two flat pins spaced 180° apart and a third offset guide pin.
H11: Uses a PGJ19-2 base. It has two flat pins spaced 150° apart and a different notch/locking tab configuration.
Mounting/Locking Mechanism:
The positions and shapes of the locking tabs/notches on the bulb base and the socket are different. An H7 physically will not lock securely into an H11 socket, and vice versa.
Typical Applications:
H7: Very commonly used for low beam (dipped beam) headlights. Sometimes used for high beam or fog lights in specific applications.
H11: Very commonly used for fog lights. Also frequently used for low beam (dipped beam) headlights in many modern vehicles, especially US/Asian models. Less common for high beams.
Wattage (Nominal):
H7: Typically 55W.
H11: Typically 55W (common), but also available in higher wattages like 65W for some fog light applications (always check your vehicle’s specifications!).
In Summary:
Physically Incompatible: You cannot plug an H7 bulb into an H11 socket, or an H11 into an H7 socket. The bases and locking mechanisms are different shapes.
Check Your Vehicle: Always refer to your vehicle owner’s manual or a reliable bulb guide to confirm the exact bulb type required for each specific light position (low beam, high beam, fog light).
Do not force a bulb into the wrong socket! Using the incorrect bulb type can lead to poor lighting performance, electrical issues, or damage to the socket.
Post time: Dec-27-2025
