Product Specifications

I. Product Positioning

The 24V H11 (PGJ19-2) is a high-performance halogen fog light bulb specifically engineered for heavy commercial vehicles. Featuring the industry-standard PGJ19-2 dual-tab bayonet base, it is optimized for 24V commercial vehicle electrical systems. Designed primarily for trucks, buses, and special engineering vehicles, this model provides auxiliary lighting in adverse weather conditions, with particular consideration for commercial vehicle safety requirements in rain, fog, snow, and other low-visibility environments.

II. Key Features

1. Commercial Vehicle Reinforced Construction

   • Heavy-Duty PGJ19-2 Base: While sharing specifications with passenger car H11 bases, it uses thicker metal materials and reinforced spring contacts to maintain stable connections under continuous vibration

   • Vibration-Resistant Filament System: Triple-support filament structure with strengthened solder points provides over 40% better vibration resistance than standard versions

   • Reinforced Quartz Envelope: Commercial vehicle specific thick-walled quartz glass withstands temperature fluctuations and road debris impact

2. Adverse Weather Optical Design

   • Enhanced Penetration Beam Pattern: Optimized filament position and envelope shape work with commercial vehicle fog light reflectors to produce a wide, flat cutoff beam maximizing close-range illumination

   • Professional Color Temperature: Typical 3000K-3500K warm yellow light minimizes scattering in rain and fog for maximum penetration

   • Anti-Glare Design: Precise beam control prevents upward scatter, avoiding light wall effect in foggy conditions

3. All-Weather Reliability

   • Wide Voltage Compatibility: Designed for 22V-28V operation, accommodating diesel vehicle starting and load variation voltage fluctuations

   • Enhanced Sealing: Base gasket uses oil-resistant, high-temperature fluororubber material suitable for harsh engine compartment environments

   • Corrosion Protection: All exposed metal components feature zinc-nickel alloy plating, passing salt spray test standards

III. Vehicle Applications

• European Long-Haul Trucks:

  • Standard fog light systems on Mercedes Actros/Arocs series (post-2011)

  • Factory fog light configurations on Scania R/S series

  • All-weather lighting package versions of Volvo FH series

  • High-specification fog light systems on MAN TGX series

• North American Heavy Trucks:

  • Fog light configurations on select Freightliner Cascadia models

  • Inclement weather packages on Kenworth T880 Engineering Edition

  • Enhanced lighting options on Peterbilt 579

• Specialty Work Vehicles:

  • Warning and lighting systems on highway maintenance vehicles

  • Fog operation lights on mining haul trucks

  • Environmental lighting on port container handlers

• Buses & Public Transport:

  • Standard fog light configurations on intercity coaches

  • Operation lighting on airport ground service vehicles

  • Inclement weather packages on school buses and safety transport vehicles

IV. Installation & Usage Guidelines

• Base Confirmation: PGJ19-2 base features two asymmetrical tabs requiring proper orientation during installation

• Voltage Verification: Must confirm vehicle uses 24V system (common in 6-cylinder+ diesel engines)

• Seal Inspection: Ensure fog light assembly waterproof seals are intact before installation

• Beam Adjustment: Check fog light beam angle after installation to ensure compliance with safety standards

V. Maintenance Recommendations

• Recommend inspecting fog light system every 500 operating hours

• Use specialized cleaners for fog light lenses to avoid scratching

• Regularly check socket contacts to prevent oxidation-related poor connections

• Fog light bulbs recommended to be replaced in pairs to ensure lighting consistency