Philips Ultinon Pro3100 SI W5W LED Light User Guide
Quick guide for Philips Ultinon Pro3100 SI W5W LED lights, covering specifications, installation, and compatibility for automotive signaling applications.
Table of contents
Quick guide from the manual
The Philips Ultinon Pro3100 SI is a W5W LED replacement bulb designed for automotive signaling. It provides a 6500K daylight-bright effect and is intended for use in interior lights, front parking/position lights, dashboard lights, glove compartments, trunk lights, license plates, 3rd stop lights, and side indicators. Please note that these lights are not ECE homologated, and it is the user's responsibility to ensure compliance with local legal requirements for road use.

Installation
The bulbs feature a simple plug-and-play design. They are equipped with standard caps, making the replacement process quick and easy. Ensure the vehicle is powered off before attempting to replace any light bulbs.
Technical Specifications
- Type: W5W (Base: W21x9.5d)
- Voltage: 12V
- Wattage: 0.74W
- Color Temperature: 6500K
- Brightness: 56 Lumens
- Lifespan: 3000 hours
Usage and Maintenance
These LED bulbs are designed for long-lasting performance, offering up to twice the lifespan of conventional W5W bulbs. They provide uniform light distribution with a wide angle, ensuring visibility where it is needed most. No specific maintenance is required; however, ensure the bulb is securely seated in the socket during installation.
Manufacturer information
Philips
Practical help
Common problems
These bulbs are not ECE homologated. Verify local legal requirements before using them for exterior signaling on public roads.
Before use
- Verify that your vehicle uses W5W (W21x9.5d) base bulbs.
- Ensure the vehicle ignition is switched off.
- Check that the bulb fits the intended application (interior, parking, license plate, etc.).
Manual page author
Michael Turner
Technical manual editor
Reviews PDF manuals for structure, safety notes, and practical product details so readers can find the right information quickly.