Automotive / Lighting Accessories
Philips Ultinon Pro3100 LED Signaling Light 11066CU31B2 User Guide
Quick guide for Philips Ultinon Pro3100 LED (11066CU31B2) signaling lights. Learn about installation, specifications, and compatibility for your vehicle's stop and tail lights.
Table of contents
Quick guide from the manual
The Philips Ultinon Pro3100 LED (11066CU31B2) is a direct replacement for standard W21/5W automotive bulbs. It is designed for stop lights and rear position/parking lights. The bulb features a polarity-free design, making installation simple and quick without needing to worry about orientation.
Product Overview
These LED lights provide a bright, intense white light effect (6000K) with a lifetime of up to 3,000 hours. They are engineered for superior visibility and instant safety signaling compared to conventional incandescent bulbs.
Installation
The Ultinon Pro3100 is a plug-and-play solution. To install:
- Ensure the vehicle's lighting system is switched off.
- Allow the existing bulb to cool down if it was recently in use.
- Remove the old W21/5W bulb from the socket.
- Insert the Philips LED bulb into the socket. Because it is polarity-free, it will work regardless of the insertion orientation.
- Test the light by turning on the vehicle's lighting system.
Specifications
- Type: W21/5W
- Voltage: 12V
- Color Temperature: 6000K (White)
- Lumens: 200/50
- Lifetime: 3000 hours
- Base: W3x16q
Legal Compliance
Important: It is the user's responsibility to ensure that the use of these LED retrofit lights complies with applicable local legal requirements. These bulbs are not ECE homologated for road use in all jurisdictions.
Manufacturer information
Philips
Practical help
Common problems
Light does not turn on
Ensure the bulb is fully seated in the socket. Verify the vehicle's socket is providing 12V power.
Legal compliance concerns
Check local traffic regulations regarding LED retrofit bulbs, as they may not be ECE homologated for road use in all regions.
Before use
- Verify your vehicle uses W21/5W bulb type.
- Ensure the vehicle electrical system is 12V.
- Turn off the vehicle's lighting system before installation.
- Allow the old bulb to cool down if it was recently in use.
Model compatibility
- Designed for stop lights and rear position/parking lights.
- Not ECE homologated (check local laws).
Manual page author
David Miller
Documentation analyst
Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.