Philips X-treme Ultinon LED Festoon C5W 4000K 43mm (Single)


Improve the light and style of your car's interior with Philips' new X-tremeUltinon LED bulbs. Long-lasting design, eye-friendly daylight effect.

Why buy Philips X-treme Ultinon LED Festoon C5W 43mm 4000K (Single)?

If you’re looking to improve both the lighting and style of your vehicle’s interior, try Philips’ new X-treme Ultinon LED bulbs. Unlike some technologically inferior LED bulbs that are on the market these days, Philips X-treme Ultinon LED bulbs produce a warm, natural-feeling and uniformly diffused light, so you can enjoy a heightened illumination that doesn’t damage or tire your eyes. What’s more, X-treme Ultinon bulbs offer an extremely durable bulb that can withstand high temperatures as well as vibrational damage as a result of a technologically innovative casing, achieving a remarkably long life of up to 12 years.

Made to the highest quality of Philips Automotive-Grade Quality standards, the new X-treme Ultinon bulbs offer the very best in lighting design, guaranteeing you an easy installation and a powerful, precise light beam performance. Give your vehicle some extra comfort, some extra style and some extra light – for years to come.

(The usage of these bulbs in an exterior application is not road-legal and, in addition, may trigger a bulb error message to appear on the vehicle's on-board computer system / dashboard. This is a harmless side-effect owing to the difference between halogen and LED technology. Any such warning errors may be removed with the additional installation of a CANbus control unit.)

Features and benefits

  • 4000K LED lighting
  • Vastly improves interior lighting
  • Warm white light
  • Sensitive to eyes
  • Exceptional style
  • Durable LED design for extremely long life – up to 12 years
  • Innovative casing prevents heat and vibrational damage
  • Built to Philips Automotive-Grade Quality high production standards
  • Not road legal – off-road applications only

About Philips

For over a century, Philips have been literally making the world a brighter place. Through using ever-advancing technology and adhering to the most rigorous and superlative of production standards, it isn’t hard to see why one in every three cars worldwide come equipped with Philips lamps. A purchase from Philips not only offers best-in-class technology, but peace of mind.

 It is your own responsibility to ensure that the use of the LED retrofit lights complies with applicable local legal requirements.


Number of Bulbs1
Bulb TypeStyling
Kelvin Rating4000K
Road LegalNo
Light Improvement

Delivery Information

We aim to dispatch all orders the same/next business day. Delivery times on our standard delivery service are:

UK: 2-3 business days*
Europe: 5-7 business days*
Rest of the World: 5-10 business days*

Need your order faster?
Customers in the UK, US & Canada can also upgrade to an express delivery service. Delivery times for this service are:

UK Next Business Day (DPD): £5.49
US & Canada 2-4 Business Days (FedEx): £13.99

*average delivery times.

RRP: £19.99 You save £7.50

£ 12.49

4.8 Based on 6 customer reviews

In stock

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Customer Reviews

Philips X-treme Ultinon LED Festoon C5W 4000K 43mm (Single)

5 Good Quality

Good quality product.

By Rhett Corcoran on

Philips X-treme Ultinon LED Festoon C5W 4000K 43mm (Single)

5 Just what you need

These bright bulbs are an excellent upgrade/replacement. The difference is noticeable, I'd argue this is the best colour temp as it's dead on white, without any yellow or medical-feeling tinges to it. It doesn't strain the eyes and changes the look of the car at night. The light spread is very good considering the directional nature of LEDs.

By Hugo on

Philips X-treme Ultinon LED Festoon C5W 4000K 43mm (Single)

4 Very Bright

A good particularly bright bulb but rather expensive, hence four stars.

By Michael151 on

Philips X-treme Ultinon LED Festoon C5W 4000K 43mm (Single)

5 Excellent service

Easy ordering, good communication, fast delivery, Goods as advertised, competitive price. Simply excellent!

By Leo on

Philips X-treme Ultinon LED Festoon C5W 4000K 43mm (Single)

5 Great bulb

Great LED bulb, the best performance is in my opinion from Philips. It gives a good amount of light with a good color temperature.

By Mikael Pedersen on

Philips X-treme Ultinon LED Festoon C5W 4000K 43mm (Single)

5 Good service

Orderd Philips X-treme Vision Festoon LED C5W 4000K for the boot light in my S type Jaguar, as I use the boot very frequently at night! Fitted very easily and extremely bright as opposed to the original filament bulb, (for a 10 year old car). I can say that it's 100% more efficient. And no disply on the cars computer whitch is a big bonus. Very pleased with early delivery too.

By B1G TL on

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