BOSCH 1987302814 / EBLB380 P21/ 5W 12 V / 21/5 W Stop Lamp Car Bulb

BOSCH 1987302814 / EBLB380 P21/5W 12V Stop Lamp Car Bulb

The BOSCH 1987302814 is a high‑performance stop lamp bulb designed for modern automotive lighting systems. It features the P21/5W lamp type and a BAY15d socket, ensuring compatibility with a wide range of vehicles that require a 12‑volt, 21.5‑watt rear illumination solution.

Key Technical Specifications

• Lamp Type: P21/5W – a compact, energy‑efficient incandescent bulb that delivers reliable stopping power.
• Socket: BAY15d – a standard automotive bayonet fitting that provides secure attachment and easy replacement.
• Voltage: 12 V – compatible with the majority of passenger cars, light trucks, and commercial vehicles.
• Power: 21.5 W – balances brightness with low power consumption, extending bulb life.

Design and Construction

The bulb is engineered with a high‑quality tungsten filament that offers consistent light output over thousands of operating hours. Its sealed glass envelope protects the filament from moisture and contaminants, reducing the risk of premature failure. The compact bayonet base ensures a snug fit in the vehicle’s rear light assembly, preventing vibration‑induced loosening.

Performance Characteristics

• Luminous Intensity: The P21/5W design delivers a focused, high‑contrast beam ideal for stop and brake lighting.
• Color Temperature: Typically around 3000 K, providing a warm white light that enhances visibility without glare.
• Operating Life: Rated for up to 2000 hours, which is standard for automotive stop lamps and ensures dependable performance during long drives.
• Thermal Management: The bulb’s construction allows efficient heat dissipation, preventing overheating even in tightly packed light housings.

Installation Guide

1. Turn off the vehicle’s ignition and disconnect the battery to avoid electrical shock.
2. Remove the existing stop lamp bulb by unscrewing or unclipping it from its socket.
3. of the new BOSCH bulb with the socket, ensuring a firm fit.
4. by tightening the bayonet threads or reattaching any clips.
5. and test the stop lamp by applying the brake pedal.
6. to confirm proper operation before resuming normal driving.

Compatibility Overview

The BOSCH 1987302814 is engineered to fit a broad spectrum of vehicle models. Its P21/5W lamp type and BAY15d socket are standard across many manufacturers, including:

• Audi, Volkswagen, and Mazda models that use the 12‑V, 21.5‑W stop lamp configuration.
• Mercedes‑Benz, Ford, and Chevrolet vehicles that require a compact, high‑brightness rear light.
• Light trucks and commercial vans that rely on durable, low‑power stop lamps for safety compliance.
• European and Asian automotive platforms where the BAY15d socket is standard for rear illumination.

Why Choose BOSCH?

BOSCH is renowned for its commitment to quality, reliability, and innovation. The 1987302814 bulb embodies these values through:

• Precision engineering that guarantees consistent performance across diverse operating conditions.
• Rigorous testing to meet automotive safety standards and withstand vibration, temperature extremes, and moisture.
• Eco‑friendly design that reduces energy consumption while maintaining optimal brightness.
• Long service life that minimizes maintenance and replacement costs for vehicle owners.

Maintenance Tips

• Regularly inspect the bulb for signs of discoloration or filament breakage.
• Keep the bulb’s glass envelope clean to avoid light scattering and maintain clarity.
• Replace the bulb promptly if it fails to illuminate, as a non‑functional stop lamp compromises safety.

Conclusion

The BOSCH 1987302814 / EBLB380 P21/5W 12V Stop Lamp Car Bulb delivers dependable, high‑quality illumination for vehicle stop and brake lighting. Its P21/5W lamp type, BAY15d socket, and robust construction make it an excellent choice for drivers who demand safety, performance, and longevity in their automotive lighting systems.