P21W BA15S Single Contact Automotive Bulb - Amber (12 Volt)

The P21W BA15S Single Contact Automotive Bulb - Amber (12 Volt) is a replacement automotive bulb designed for compatible 12V vehicle lighting systems that require a P21W bulb with a BA15S single-contact bayonet base. Its amber light output makes it suitable for approved lighting applications that require an amber signal, such as compatible indicator or signal lamps. The single-contact base provides a straightforward connection for matching bulb holders, while the specified voltage supports use in compatible automotive electrical systems. Whether replacing a failed bulb or carrying out routine vehicle maintenance, confirming the original bulb specification helps ensure correct fitment and reliable operation.

Amber Light Output for Compatible Signal Lamps: The amber illumination makes this bulb suitable for vehicle lighting positions designed to display an amber signal. Depending on the vehicle's original configuration, this may include compatible indicator or other approved signal-light applications. Using the correct colour is important for maintaining the intended function of the lamp and meeting applicable road-use requirements. Always verify the required bulb colour and lighting position against the vehicle handbook or original bulb markings before installation.

P21W Bulb Specification: The P21W designation identifies a single-filament automotive bulb rated at 21 watts. Matching this specification to the original bulb helps ensure that the replacement is appropriate for the lamp's electrical and lighting requirements. Using an incorrect wattage may affect light output or place unsuitable demands on the vehicle's electrical system. Check the existing bulb markings and the manufacturer's specifications before purchasing to confirm that a P21W replacement is required.

BA15S Single-Contact Bayonet Base: Featuring a BA15S base, this bulb uses a single electrical contact and a bayonet-style mounting arrangement designed for a matching socket. Correct base compatibility is essential for proper seating and electrical connection. Although some automotive bulbs may look similar, their base types, contact arrangements, and locating pins can differ. Compare the replacement with the original bulb and holder before installation, and never force the bulb into a socket that does not match its design.

12-Volt Automotive Compatibility: This bulb is specified for 12V automotive electrical systems, making it suitable for compatible vehicles and equipment that require the same voltage. Matching the bulb voltage is important for appropriate operation and to help prevent premature failure. Before ordering, confirm the vehicle's electrical system and the required bulb specification, especially if the original bulb has previously been replaced with a different type. Always follow the vehicle manufacturer's recommendations for automotive lighting components.

Practical Replacement for Routine Maintenance: Automotive bulbs can fail through normal use, vibration, electrical fluctuations, or age. This amber P21W bulb provides a practical replacement option when an existing compatible bulb stops working or needs to be changed during servicing. Keeping the correct replacement available can help reduce delays when restoring vehicle lighting. Before fitting the new bulb, inspect the socket and electrical contacts for corrosion, damage, or overheating, as these issues may affect the performance of the replacement.

Suitable for Compatible Vehicle Lighting Assemblies: The bulb can be considered for compatible automotive lamp assemblies that specify a P21W BA15S amber bulb. Correct selection helps preserve the intended lighting function and ensures that the bulb fits the existing holder. The suitability of the bulb depends on the vehicle make, model, year, and lamp design, so compatibility should not be assumed based on appearance alone. Check the original bulb code and the vehicle's requirements before purchasing.

Check Fitment and Lighting Requirements Before Installation: Before installing the bulb, confirm the P21W rating, BA15S base, 12V specification, and amber colour against the original equipment requirements. Ensure that the bulb seats correctly and that the lamp housing is securely reassembled after replacement. Test the relevant light function before driving and confirm that the signal is clearly visible. Exterior lighting must comply with applicable vehicle regulations, so use the bulb only in an approved application that requires amber illumination.

The P21W BA15S Single Contact Automotive Bulb - Amber (12 Volt) is a practical replacement for compatible automotive lighting systems requiring a 21W single-filament bulb with a BA15S single-contact base. Its amber light output and 12V specification make it suitable for matching signal-light applications where this bulb type is required. Check the original bulb markings, socket configuration, colour requirements, and vehicle compatibility before purchasing to ensure the correct fit.

Please refer to the image to ensure suitability.

What's in the box
1 x Bulb