Lighting / Fixtures
Philips Ultinon Pro3100 SI P21/5W LED Signaling Bulb User Guide
Technical specifications and usage information for the Philips Ultinon Pro3100 SI P21/5W LED signaling bulb, featuring 12V operation and intense red light output.
Table of contents
Product Overview
The Philips Ultinon Pro3100 SI is a high-performance LED signaling bulb designed to replace standard P21/5W incandescent bulbs. It provides an intense red light effect, improving visibility for stop and tail light applications. These bulbs are engineered for durability and offer a significantly longer lifespan compared to conventional lighting solutions.
Key Features
- Instant-on Technology: LEDs illuminate instantly, allowing other drivers to react faster to your braking or signaling.
- Plug-and-Play: Designed for easy installation with standard caps, making the upgrade process quick and straightforward.
- Enhanced Visibility: Optimized light distribution ensures that your vehicle's signals are clearly visible, even in poor weather conditions.
- Polarity-free: Simplifies the installation process by eliminating the need to worry about electrical polarity.
Technical Specifications
- Lamp Type: P21/5W
- Base: BAY15d
- Voltage: 12V
- Wattage: 1.75W / 0.65W
- Lumens: 65/32
- Lifespan: Up to 3,000 hours
- Color Temperature: Red
Safety and Compliance
While these LED bulbs are designed for easy replacement, it is the user's responsibility to ensure that the use of LED retrofit lights complies with all applicable local legal requirements for road use. The product is not ECE homologated for public road use in all jurisdictions.
Manufacturer information
Philips
Practical help
Common problems
Legal compliance
Ensure that the use of LED retrofit bulbs is permitted by local traffic regulations in your country before installation.
Before use
- Verify that your vehicle uses the P21/5W lamp type.
- Check that your vehicle's socket is compatible with the BAY15d base.
- Ensure the vehicle is turned off and the lighting system is cool before attempting replacement.
Model compatibility
- Designed as a direct replacement for conventional P21/5W bulbs.
- Compatible with most vehicles using the BAY15d base.
Manual page author
David Miller
Documentation analyst
Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.