Teybouk 4 PCS Car H21W Bulb, 12V 3500K Ultra-bright Long-lasting Daytime Running Bulb Rear Fog Light, Vehicle Copper Base Tungsten Halogen Light Replacement Parts, for Most Vehicles (White)

Teybouk 4 PCS Car H21W Bulb, 12V 3500K Ultra-bright Long-lasting Daytime Running Bulb Rear Fog Light, Vehicle Copper Base Tungsten Halogen Light Replacement Parts, for Most Vehicles (White)

• Specification Compatibility: The bulb features an H21W standard design, compatible with daytime running lights and rear fog lights in most vehicle models. It can directly replace the original equipment bulb of corresponding specifications without requiring additional modifications.
• Premium Materials: The bulb features a copper base paired with high-quality tungsten filament, ensuring excellent heat dissipation and stability. Compared to traditional halogen bulbs, it offers a longer lifespan, enhanced resistance to aging, and reduced susceptibility to damage, minimizing replacement frequency.
• High-brightness Illumination: The bulb operates at 12V, emitting a warm white light with a 3500K color temperature. Its gentle yet penetrating beam provides clear illumination of the driving path, enhancing visibility during daytime and foggy conditions.
• Multi-function Compatibility: Suitable for dashboard indicators, dome lights, license plate lights, reading lights, trunk lights, cabin lights, daytime running lights, door side marker lights, and tail lights. Directly replaces worn or damaged OEM bulbs to quickly restore lighting functionality.
• Simple Installation: The bulb requires no specialized tools for installation. It follows the original vehicle bulb specifications with a precise connector match. No professional repair knowledge or tools are needed—simply plug and unplug by hand to complete installation, saving time and effort.