Osram Ultra Life PY21W BAU15s 21W 12V Automotive Signal Light Bulb

The Osram Ultra Life PY21W BAU15s signal light bulb is a high-performance automotive lamp engineered for exceptional durability and consistent illumination. Designed specifically for turn signal applications, this 12V bulb provides a reliable lighting solution for drivers who prioritize longevity and safety. With its robust construction, it serves as an ideal replacement for standard indicator bulbs, ensuring that your vehicle's signaling remains clear and visible under various driving conditions.

Advantages

The primary benefit of the Osram Ultra Life series is its extended service life, which significantly reduces the frequency of bulb replacements. This durability is achieved through high-quality manufacturing standards that ensure the bulb withstands the vibrations and thermal stresses common in automotive environments. By choosing this product, drivers benefit from a dependable light source that maintains consistent brightness throughout its operational lifespan, contributing to safer road signaling and reduced maintenance efforts.

Suitable for

• Vehicle turn signal indicators
• Replacement of standard amber indicator bulbs
• Drivers seeking long-lasting automotive lighting components

When it may not be suitable

This bulb is not intended for use in lighting systems that require a different base type or wattage, such as headlights or interior cabin lights. It is specifically designed for amber signal applications and should not be used where clear light output is required.

Key specifications

• Base type: BAU15s
• Voltage: 12V
• Power: 21W
• Light color: Amber
• Quantity: 1 bulb per pack

How to use

To install the bulb, ensure the vehicle's ignition and lighting system are switched off. Access the indicator light housing according to your vehicle's manual. Remove the old bulb by gently pressing and turning it counter-clockwise. Insert the new Osram Ultra Life bulb into the socket, aligning the pins, and turn it clockwise until it locks securely into place. Test the turn signal before driving to ensure proper functionality.

What to consider before purchase

• Verify that your vehicle's socket is compatible with the BAU15s base type.
• Check your vehicle owner's manual to confirm the required wattage and voltage specifications.
• Ensure that the amber color is appropriate for your specific vehicle's indicator lens.

Usage recommendations

For optimal performance and safety, it is recommended to replace signal bulbs in pairs to ensure uniform brightness and color intensity on both sides of the vehicle.