Product Specifications

I. Origin & Design Philosophy
        The H11 is a representative product of the modern trend towards modular, high-power-density automotive lighting. Emerging in the early 2000s, it was designed to deliver greater light output and superior thermal management within compact spaces. Its unique design balances performance and size, rapidly replacing older bulb types to become the standard choice for front fog lamps and, in some models, low-beam headlights for numerous global vehicles, particularly mainstream Japanese, American, and European brands. The H11 marks a new height in halogen technology, achieving high-wattage illumination in minimal space.

II. Core Advantages

High Performance in Compact Spaces: Despite its relatively compact size, the H11 typically delivers a powerful 55W output with concentrated light efficiency and excellent brightness, making it ideal for modern, aerodynamically styled lamp assemblies with stringent space constraints.

Excellent Thermal Stability & Lifespan: Featuring an optimized filament structure and bulb design that improves heat distribution, it operates more stably within enclosed fog lamp housings or compact headlight units, contributing to an extended practical service life.

Professional Adverse-Weather Penetration: When used as a fog light, its warm white light (typically around 3000K-4000K) offers moderate scattering in rain, fog, and snow, effectively illuminating the contours of the road surface close to the vehicle, making it a crucial component for enhancing active safety.

III. Product Features

• Dedicated PGJ19-2 Bayonet Base: Employs a unique asymmetric, two-tab bayonet design. This is the most distinctive physical characteristic of the H11, guaranteeing precise installation alignment to ensure the beam pattern meets safety regulations. Important: It is not directly interchangeable with visually similar types like H8, H9, or H16, which have different base dimensions and connectors.

• Single-Filament Focused Design: Optimized for a single function (fog or low beam) with precise focal point positioning. Paired with its corresponding reflector, it produces a beam pattern with a sharp cut-off and a wide spread.

• High-Temperature & High-Pressure Resistant Quartz Envelope: Made from high-purity quartz glass to withstand the rapid temperature fluctuations and high internal pressure common in fog light operation, ensuring safety and reliability.

• Plug-and-Play Direct Upgrade: As an OEM standard type, it directly replaces worn or underperforming original bulbs, offering the most convenient and reliable upgrade path for improved lighting.

Compatibility & Note:

• Primary Applications: Widely used for front fog lamps across various vehicle models. Also used for low-beam headlights in some models, particularly Japanese brands.

• Crucial Identification: Always verify the base type of your original bulb before purchase and installation. H11, H8, H9, etc., look similar but have incompatible connectors. Incorrect installation may prevent operation or cause damage.