Phillips H4666C1 Headlight Bulb - High Beam and Low Beam

Reliable Halogen Headlight Bulb for Select Vehicle Models

The Phillips H4666C1 headlight bulb offers dependable lighting performance for a range of vehicles including Chevrolet Blazer, Dodge Dakota, Honda Civic, and Toyota Tercel. Designed as a standard sealed beam halogen bulb, it provides both high beam and low beam functionality with clear illumination that meets DOT and street-legal requirements.

• Halogen technology with clear glass bulb and finish
• Standard sealed beam design with 3 contact lugs base
• Dual filament (C-6) for high beam and low beam operation
• Amperage rating of 5.07/3.51 amps at 12.8 volts
• Wattage of 65 watts (high beam) and 45 watts (low beam)
• DOT approved and street legal for safe road use
• Compatible with multiple makes and models including Chevrolet, Chrysler, Dodge, Ford, Geo, GMC, Honda, Mercury, Mitsubishi, Plymouth, Pontiac, Saturn, and Toyota

About the Phillips Standard - Single Commercial Pack Line

The Standard - Single Commercial Pack from Phillips is designed to provide reliable, consistent lighting solutions for commercial and passenger vehicles. This product line focuses on delivering halogen bulbs that meet regulatory standards such as DOT approval while maintaining compatibility with a wide range of vehicle makes and models. The H4666C1 bulb is part of this line, offering a balance of performance and durability suitable for everyday driving conditions.

Product Details and Specifications

The Phillips H4666C1 headlight bulb features a clear glass construction with a single filament type C-6, enabling both high and low beam functions within one sealed beam unit. The bulb base includes 3 contact lugs for secure installation. Operating at 12.8 volts, it draws 5.07 amps on high beam and 3.51 amps on low beam, with wattage ratings of 65 and 45 respectively. Its clear bulb color and finish ensure optimal light output and visibility. This bulb is designed to replace original equipment in vehicles such as the Dodge Dakota, Honda Civic, and Toyota Tercel, among others.

Common Applications and Issues Addressed

• Replacement for burnt-out or dim headlight bulbs in compatible vehicles
• Restores proper high beam and low beam lighting functionality
• Ensures compliance with DOT and street-legal lighting standards
• Improves nighttime visibility and road safety
• Suitable for vehicles experiencing flickering or inconsistent headlight performance

Installation Notes and Tips

When installing the Phillips H4666C1 bulb, ensure the vehicle is turned off and the headlight assembly is cool to avoid injury. Handle the bulb by the base to prevent oils from fingers contaminating the glass, which can reduce bulb life. Verify the 3 contact lug base aligns correctly with the socket before securing. Consult the vehicle’s owner manual for specific headlight removal and installation instructions. Proper installation will maintain the bulb’s performance and longevity.

Quality Assurance and Warranty

Phillips headlight bulbs, including the H4666C1, are manufactured to meet industry standards for quality and safety. This bulb is DOT approved and street legal, ensuring compliance with regulatory requirements. While specific warranty details are not provided, Phillips products typically undergo rigorous testing to ensure durability and reliable operation in automotive lighting applications.