---
product_id: 687390372
title: "Philips Ultinon Pro3100 LED car signalling bulb (W21W red)"
brand: "philips"
price: "23757CFA"
currency: XOF
in_stock: true
reviews_count: 13
category: "Philips"
url: https://www.desertcart.sn/products/687390372-philips-ultinon-pro3100-led-car-signalling-bulb-w21w-red
store_origin: SN
region: Senegal
---

# 12V low power draw Instant on/off LED tech Plug & play fitment Philips Ultinon Pro3100 LED car signalling bulb (W21W red)

**Brand:** philips
**Price:** 23757CFA
**Availability:** ✅ In Stock

## Summary

> 🚗 Light up your drive with confidence and style!

## Quick Answers

- **What is this?** Philips Ultinon Pro3100 LED car signalling bulb (W21W red) by philips
- **How much does it cost?** 23757CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/687390372-philips-ultinon-pro3100-led-car-signalling-bulb-w21w-red)

## Best For

- philips enthusiasts

## Why This Product

- Trusted philips brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Enhanced Safety Compliance:** Optimized visibility to help you signal with confidence, while staying mindful of local regulations.
- • **Long-Lasting LED Durability:** Engineered to outlast traditional bulbs, reducing replacements and keeping you road-ready.
- • **Energy-Efficient Performance:** Consumes less power than incandescent bulbs, helping your car run smarter, not harder.
- • **Seamless Vehicle Compatibility:** Designed for easy installation on most vehicles—upgrade your safety without the hassle.
- • **Brighter, More Distinct Signals:** Cut through the traffic noise with sharper, clearer indicator lights that demand attention.

## Overview

The Philips Ultinon Pro3100 W21W red LED signalling bulb delivers instant-on, brighter, and more distinct signals with low power consumption. Designed for easy installation on most 12V vehicles, it offers long-lasting durability and enhanced visibility to improve road safety. Note: Some vehicles may require additional resistors to prevent hyper-flashing.

## Description

Philips Ultinon Pro3100 LED car signalling bulb (W21W red) : desertcart.co.uk: Automotive

Review: Very good ‘bulbs’ - I bought in the hope of a slightly brighter indicator light, and it achieves that. Not too bright to be silly, just that extra edge. What I hadn’t appreciated though was the additional benefit of a more distinct signal. Seeing a standard incandescent bulb side-by-side to this LED highlighted that the incandescent bulb doesn’t actually quite go out. The filament gets hot and the brief moment the power is off doesn’t give it chance to fully cool to nothing. The LED on the other hand is instantly on then off, making a more distinct, and hopefully noticeable, signal. Do note though that on some cars, my 2014 RAV4 included, you will need to increase the resistance in the signal circuit otherwise you will experience fast flashing, hyper flashing. That is just because the LEDs draw less current than their incandescent equivalent and you need to add a resistor to mimic the original load. I went for the Osram LED driving 21 watt version as a respected brand. Whilst I only changed the rear indicator bulbs for LEDs I add the resistors to the front indicator wiring as it was easier to access and allowed me to mount the resistors onto readily available metal brackets in the engine bay (that they need as they get hot!). I’m very impressed! I’ve got other Philips LEDs in other lights around the car and they’ve lasted years, so I’m confident that these will do the same. Well done Philips, another great addition to car safety.
Review: Cause indicators to flash rapidly - Ordered these for a 2011 Freelander 2 front and rear indicators. Perfect fit, very nicely made, and a good level of brightness without being blinding, but the bulbs flash at a very high rate when signalling. I believe the legal limit for the UK MoT is between 60 to 120 flashes per minute. These flash at at least the 120 max limit. To be fair, the listing says they will work 'with most vehicles', so perhaps they might be worth a try on your car as long was you are prepared to return them if not.

## Features

- Signal your intent with brighter exterior lighting
- Durable, long-lasting LED lighting, optimised for enhanced visibility
- Easy to install and compatible with most vehicles
- W21W LED red 12V, W3x16d, x2
- It is your own responsibility to ensure that the use of the LED retrofit lights complies with applicable local legal requirements

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C4QB4MP4 |
| Best Sellers Rank | 9,801 in Automotive ( See Top 100 in Automotive ) 45 in Automotive Turn Signal Bulbs |
| Brand | Philips |
| Customer Reviews | 4.3 4.3 out of 5 stars (3,992) |
| Date First Available | 9 May 2023 |
| Item Weight | 30 g |
| Item model number | 2194630 |
| Manufacturer | Lumileds |
| Manufacturer part number | 11065RU31B2 |
| Model | Ultinon Pro3100 |
| Package Dimensions | 16.4 x 9.4 x 1.6 cm; 30 g |
| Position | Outside |
| Voltage | 12 Volts |

## Product Details

- **Brand:** Philips
- **Colour temperature:** 6000 Kelvin
- **Light source type:** LED
- **Specific uses for product:** Indicator Light
- **Wattage:** 21 watts

## Images

![Philips Ultinon Pro3100 LED car signalling bulb (W21W red) - Image 1](https://m.media-amazon.com/images/I/71f2qPEt0OL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very good ‘bulbs’
*by G***K on 5 November 2023*

I bought in the hope of a slightly brighter indicator light, and it achieves that. Not too bright to be silly, just that extra edge. What I hadn’t appreciated though was the additional benefit of a more distinct signal. Seeing a standard incandescent bulb side-by-side to this LED highlighted that the incandescent bulb doesn’t actually quite go out. The filament gets hot and the brief moment the power is off doesn’t give it chance to fully cool to nothing. The LED on the other hand is instantly on then off, making a more distinct, and hopefully noticeable, signal. Do note though that on some cars, my 2014 RAV4 included, you will need to increase the resistance in the signal circuit otherwise you will experience fast flashing, hyper flashing. That is just because the LEDs draw less current than their incandescent equivalent and you need to add a resistor to mimic the original load. I went for the Osram LED driving 21 watt version as a respected brand. Whilst I only changed the rear indicator bulbs for LEDs I add the resistors to the front indicator wiring as it was easier to access and allowed me to mount the resistors onto readily available metal brackets in the engine bay (that they need as they get hot!). I’m very impressed! I’ve got other Philips LEDs in other lights around the car and they’ve lasted years, so I’m confident that these will do the same. Well done Philips, another great addition to car safety.

### ⭐⭐⭐⭐⭐ Cause indicators to flash rapidly
*by G***N on 29 January 2025*

Ordered these for a 2011 Freelander 2 front and rear indicators. Perfect fit, very nicely made, and a good level of brightness without being blinding, but the bulbs flash at a very high rate when signalling. I believe the legal limit for the UK MoT is between 60 to 120 flashes per minute. These flash at at least the 120 max limit. To be fair, the listing says they will work 'with most vehicles', so perhaps they might be worth a try on your car as long was you are prepared to return them if not.

### ⭐⭐⭐⭐⭐ Works great with a 2011 R1200RT
*by D***N on 21 July 2025*

An ideal plug and play option, with no CANbus errors on my R1200RT. Projects great whilst not being horrendously blinding, and doesn't generate a tonne of heat. Clear orange colour as well - no concerns of confusion

## Frequently Bought Together

- PHILIPS Ultinon Pro3100 LED car signalling bulb (W21W red)
- Philips automotive lighting Ultinon Access LED car headlight bulb (Fog H8/H9/H16), ultra-compact direct-fit, 80%, 6.000K, set of 2
- OSRAM LEDriving SL, ≜ W5W, Signal lights, White 6000K, LED Retrofit, off-road use only, Duo Box (2 lamps)

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**Shop now:** [https://www.desertcart.sn/products/687390372-philips-ultinon-pro3100-led-car-signalling-bulb-w21w-red](https://www.desertcart.sn/products/687390372-philips-ultinon-pro3100-led-car-signalling-bulb-w21w-red)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-02-19*