Philips X-tremeUltinon LED W5W 4000K Lamps (Twin)

Improve the light and style of your car's interior with Philips' new X-tremeUltinon W5W 501 LED bulbs. Long-lasting ceramic design, eye-friendly daylight effect.

Why buy Philips X-treme Ultinon LED W5W 4000K (Twin)?

If you’re looking to improve both the lighting and style of your vehicle’s interior, try Philips’ new X-treme Ultinon W5W 501 LED bulbs. Unlike some technologically inferior LED bulbs that are on the market these days, Philips X-treme Ultinon LED bulbs produce a brilliant, natural-feeling and uniformly diffused light, so you can enjoy a heightened illumination that doesn’t damage or tire your eyes. What’s more, through Philips’ utilisation of their unique CeraLight ceramic technology, X-treme Ultinon bulbs offer an extremely durable bulb that can withstand high temperatures as well as vibrational damage, 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 Philips CANbus control unit.)

Features and benefits

4000K LED lighting
Vastly improves interior lighting
Warm white light effect
Exceptional style
Durable LED design for extremely long life – up to 12 years
New CeraLight ceramic 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.

Product specification

Fitting	W5W (501)
Number of Bulbs	2
Bulb Type	Styling
Voltage	12V
Wattage	1W
Kelvin Rating	4000K
Road Legal	No
Technology	LED
Lumens	50
Range	X-treme Ultinon
Base
Light Improvement
SKU	127994000KX2
EAN	8727900395945
Condition	New

Here's all you need to know about our delivery services on orders below:

Destination	Delivery Method	Delivery Time	Price
UK	Economy Delivery FREE Delivery Tracked Delivery 48 Hours Tracked Delivery 24 Hours *DPD Next Day Delivery	3-4 Working Days 3-4 Working Days 2-3 Working Days 1-2 Working Days 1 Working Day	£1.69 on orders under £14.99 Free on orders over £14.99 £1.99 £2.99 £5.99
Australia	Standard Delivery FREE Standard Delivery Tracked Delivery	7-10 Working Days 7-10 Working Days 5-7 Working Days	$5.75 on orders under $31.95 Free on orders over $31.95 $19.15
Canada	Tracked Delivery	7-10 Working Days	$4.99
*US	Standard Delivery Tracked Delivery	7-10 Working Days 5-7 Working Days	$4.99 $14.49
Singapore	Standard Delivery Tracked Delivery	7-10 Working Days 5-7 Working Days	£4.99 £8.99
New Zealand	Standard Delivery Tracked Delivery	7-10 Working Days 5-7 Working Days	£4.99 £8.99
*Europe	Standard Delivery Tracked Delivery	7-10 Working Days 5-7 Working Days	€4.99 €11.69

We're now operating a new system for deliveries, whereby certain orders are processed on demand. This means that particular products may take longer to arrive, as we will request these from our supplier after you place your order - Please see individual product pages where delivery is impacted. But won't worry, it'll be worth the wait.

*We only ship to parts of the US, states include: California, Florida, Georgia, Illinois, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Texas, Virginia, Washington, Alabama, Arizona, Colorado, Iowa, Idaho, Kansas, Massachusetts, Maine, Missouri, Mississippi, Montana, North Dakota, New Mexico, Oklahoma, Oregon, South Carolina, Tennessee, Wisconsin

*We only ship to parts of Europe, countries include: Belgium, Cyprus, Denmark, Finland, France, Germany, Greece, Ireland, Netherlands, Portugal and Sweden.

*DPD Next Day Delivery orders to the UK, please note:

- Orders placed before 3:30pm Friday will be delivered Monday.
- Orders placed after 3:30pm Friday will be delivered Tuesday.

Unfortunately due to regular problems when delivering to certain countries via a non-tracked service, we cannot currently offer our free international delivery service to the following:

New Zealand

On rare occasions, due to factors outside of our control, delivery may take slightly longer. If you haven't received your order within the estimated time please accept our apologies. Please contact us and we'll be happy to provide further assistance.

Special note for Australia: We have been advised that parcels are currently expected to take 15-25 working days to arrive to Australia, depending on the location. This is due to measures being taken to prevent the spread of Covid-19. We are currently taking steps to try to reduce this delivery time as much as possible.

Please note: If your parcel is being shipped internationally, additional customs fees may apply.

Customer Reviews

4.9/5

Well worth it

5/5

After one dead halogen w5w decided to replace both with led, went for the warm colour 4000k if not mistaken and they fit perfectly and they way more bright than previous ones. I’m happy with the product.

David Silva

Reviewed on:
9th August 2021

LED W5W twin Bulbs

This PHILIPS LED W5W side bulbs, the are fantastic for my TOYOTA PRIUS HYBRID 2009 / 2015 !!! I use them for number plate and i am extremely happy !!! The old bulbs produce to much heat and was burning the pvc soclu!!! This LED they are not burning nothing because the are cold bulbs, also the light on my number plate is improved much !!!

Cristian

Reviewed on:
19th December 2020

Perfect

These replaced the crappy incandescent bulbs of my foot well lighting, door lighting and my focused reader lights on my BMW 335d Touring. Amazing build quality. The white is just right. No yellowness, and none of the fluorescent hospital vibes. Bright enough to make a noticeable difference, but not a burden on the eyes. Only negative point is you need to ensure polarity is correct, this can be done by putting them, removing and putting in another way until they light up.

Hugo

Reviewed on:
24th April 2020

Great improvement

Purchased to replace original incandescents in central interior courtesy lamp. A fantastic improvement in brightness and nice white light but not too white.

Jeff

Reviewed on:
3rd October 2019

Such an improvement

So much better than original fitment incandescent bulbs. Can actually see inside the car at night, now! Was advised 6000k too stark for internal use and these 4000k are fine.

Reviewed on:
23rd September 2019

Perfect colour and low power

Great led for parker lights or number plate lights with low power draw.. Top quality service from the team at power bulbs.. Easy to order and great value

Tione

Reviewed on:
2nd September 2019

Great interior bulbs

Used these to replace the interior and puddle light bulbs on B7 Passat Alltrack. Much better than yellow original bulbs. I thought that these LEDs would just switch off abruptly rather than fade out like the original bulbs. Pleasantly surprised to find that they fade out when they turn off. Worthwhile upgrade.

Reviewed on:
21st August 2019

Great

Very bright LED Parker bulbs, the colour is a slightly warmer white, big step up from my old generic store-bought LED parkers that were way too blue. They also colour match really well with the Philips RacingVision Headlights.

Justin

Reviewed on:
19th May 2019

worth extra £

Wanted to buy led 501 for number plates but didnt want ricer look where lights are too strong and just looks silly. Went for ultinon 2 4000k as after reading reviews its looks more natural. And it does give natural white look not blinding one. Well happy with it.

Reviewed on:
9th May 2019

nice and white

I used these as the front position lights in a c crosser. they are nice and white. a vast improvement on the old yellow lamps. they have not caused any problems with the canbus system. expensive but money well spent.

Kev

Reviewed on:
23rd March 2019

Great buy

I used this to replace 5w incandescent bulbs in my car interior and rear number plate holder and am getting way, way more light output and a much nicer colour (4000K) without the heat. Watch the polarity: you may need to turn the bulb around to get it to work otherwise you might think the bulb is broken. Very glad I bought these.

Ed8080

Reviewed on:
6th February 2019

A great product

I tried installing a 5000K W5W bulb in my car before. It was really bright and white (without a tint of blue). However, the light gives out an absolute white color. It's fatiguing for the eyes and does not provide a good contrast to the interior of the vehicle. The 4000K bulb is better, in my opinion, because it provides more contrast and easier on the eyes without sacrificing brightness. I admit that the 5000K may have a better light output in lumens but the difference is subtle and it is because of the tint of the light output. Comparing this to the stock halogen W5W bulb, this is on a different league. I highly recommend this to all car owners.

Michael

Reviewed on:
23rd January 2019

Philips Xtreme Ultinon 4000K

Perfect bulbs!Proffesional packaging and fast delivery.

Nemo

Reviewed on:
4th January 2019

T10 led

Perfect fit for my Prius interior lights.Thank you.

Mike

Reviewed on:
30th May 2018

Decent bulbs, just not 50lm as advertised.

4/5

As per other's reviewer's observation, it appears that there are quite a few revisions of these bulbs. The ones I've purchased from Powerbulbs are: X-treme Vision LED T10 "CeraLight 360" 4000K August 2016, rated at 50 lumens (on box). SKU: 127994000KX2 Code: 39244930 X-tremeUltinon LED T10 4000K May 2018, rated at 45 lumens (on box). SKU: 127994000KX2 Code: 39594530 Regardless of the revisions, both appears to be performing well above the average incandescent bulbs in terms of brightness. Just be aware that there may be slight variant in terms of light output between revisions.

Jay

Reviewed on:
21st May 2018

Okay bulbs

3/5

These bulbs put out 45 lumens, not the 50 lumens stated. It appears Philips has at least three versions of this bulb, this 45 lumen version, a 50 lumen version (with a silver instead of gold band) and a newer 45 lumen version in a different box (also sold on powerbulbs). This bulb is maybe twice as bright as a regular incandescent but the colour seems higher then 4000K, approaching the fluorescent tube white with a hint of purple, and it flickers slightly a few seconds after being powered. This seems to be normal for the bulb and it goes away quickly. Overall an upgrade over incandescent but not the amazing brightness and nice colour one would expect.

Barry

Reviewed on:
2nd April 2018

Couldnt ask for more!

Bought these to replace my interior globes. These things light up the interior giving great clarity. 110% better than the factory globes.

RANGER13

Reviewed on:
28th January 2018

Bulbs

I bought these T10 w5w bulbs, & they r very good, & very bright. Well worth the money.

Ian

Reviewed on:
17th October 2017

Great product

Great product. Great price.

Adrian

Reviewed on:
14th August 2017

Worth paying the extra...

I purchased a pair of own brand LED replacement bulbs from a well known car retailer. Although they looked the same size, they were a fraction larger in diameter and wouldn't fit my vehicle. These arrived today and they fitted my vehicle perfectly. They appear well made and produce a bright white light, without looking aftermarket.

John01010010

Reviewed on:
3rd June 2017

good cool white parking light

great white parking light

Amit Divekar

Reviewed on:
17th May 2017

l200

these look great in my l200

Karl

Reviewed on:
31st March 2017

Excellent

Excellent buy but had to buy resistors before I could fit so be aware

Welder

Nice bright lamps.

Perfect replacement lamps, bright white light.

Zebzmate

Reviewed on:
24th March 2017

Awesome

Installed them as my license plate lights and they are bright , feels they match my rear better then the 6K ones , personal preference though , overall delivery was quite fast to Malaysia :-)

Andrew

Reviewed on:
30th January 2017

Quality Item as Expected

I had 2 pairs ordered to replace my interior reading lights, glove compartment, and boot lights. They look brilliant as expected but are just a tad bit whiter (still warm white) than Osram's LEDriving 4000K LED that i have in my footwell. You won't be able to tell the difference without a side-by-side comparison. All in all, it's a quality item and looks brilliant.

Eiran

Reviewed on:
4th January 2017

Brilliant

These really made the sidelights on our 2002 Skoda Fabia stand out - but then I read what I had overlooked on the website, that these are not road-legal. I can't see why they are not - they serve well the purpose of making the car clearly visible to oncoming drivers and if LED running lights are legal, why not these?

Tony

Reviewed on:
28th November 2016

Zee

Reviewed on:
24th October 2016

Amazing

A powerful, splendid lighting

Ahg

Reviewed on:
8th September 2016

Awesome T10 alternatives

These LEDs are bright, I installed these on my bike and its brilliant but I would stress this enough its not legal to use on roads do install then at your own risk, other than that it is a good buy

Zack

Reviewed on:
14th August 2016

Good

High performances and best service.

SEAN

Reviewed on:
25th July 2016

Philips 194/168/T10/W5W L.e.d

I had been purchased Philips W5W L.e.d in 4000K,6000K,8000K frequently since 2015 from Powerbulbs. ①Standard / stable colour temp. compatiable with same l.e.d product line（Philips 6000K H8,H11,H16 l.e.d Fog moledule）. ②4000K could give soft & comfort view. ③8000K could satisfy Japanese brand H.I.D users to blend in specific colour temp. ④50 lumens are enough without "over bright". ⑤Good & reasonable pricing from Powerbulbs

A. Chan

Reviewed on:
20th June 2016

Great bulbs

I bought these bulbs as replacement/upgrade of the regular W5W for my Smart Fortwo. The 4000K pump out tons of light and colour seem just like the regular W5W. The 6000K is a little too blue to seem originals. I would recommend them without a doubt.

Marc V.

Reviewed on:
22nd February 2016

good

Good coluor temperature for parking lights not too white long life offsets the high price. satisfied overall

James Lynam

Reviewed on:
12th February 2016

Great buy!

Matches the Osram Nightbreaker Unlimited low beams perfectly in color and are much brighter than standard w5w bulbs. Definitely recommend them

Henrik

Reviewed on:
30th January 2016

Philips Xtreme Vision 360

I hardly ever write reviews but am delighted with the bulbs and the support from powerbulbs.These LEDs are fantastic and the price can't be beaten, especially with the free delivery! The bulbs are extremely bright in comparison to stock bulbs and there is no flicker from them unlike other cheap LEDs. Also had the older Philips t5 led which were great but they only shone the light in one narrow direction, but the 360 version throws the light around in a much better way. Also purchased other bulbs from powerbulbs which failed after a short period of time and I have to say the customer support was A+ and they stood by their warranty. New bulbs fitted and they are perfect. Delighted!

Eoin

Reviewed on:
15th January 2016

Nissan Dualis +2

Fits well inside for the Nissan Dualis +2 model. The light is very easy on the eyes and crystal clear, neat and clean.

Jack

Reviewed on:
9th January 2016

great replacement for regular w5w bulbs

great bulbs, and a fantastic color match with the philips h4 extreme vision headlight bulbs 3700k they are really nice bright compared tot traditional w5w bulb and: great shopping at powerbulbs. nice price and fast delivery.

Pedro S.

Reviewed on:
5th January 2016

Bright Light

Works extremely well and has eliminated the awful flickering I was getting from cheaper bulbs.

John

Good bulb

Good light output but expected better! Go for the 6000k version.

Tony.W

Reviewed on:
17th December 2015

Better & improved

I had the first Philips W5W 4000K lamps in the 14' Fiesta & they were very good. These are better! In the headlamp the new lamp shines sideways & reflects off of the chrome internals & they look just great from ahead & the side too. I've Osram nightbreakers on dip beam & they're a good colour match, not white/yellow. And I've just bought another pair for the focus, NICE!

Goresville

Reviewed on:
29th November 2015

1st class

These are an excellent replacements for your standard w5w bulbs.I use them in sidelights.They are however a tad expensive.

Crickles

Reviewed on:
23rd November 2015

Philips Xtreme Vision 360 LED W5W T10 4000K

Excellent LED!!! The best LED compact to size.

Lamp150

Reviewed on:
17th November 2015

Great LED's

Great LED's in the headlights, the right color temp, not bluish but white. Maybe a little on the warm site, that is good.

Mikael Pedersen

Reviewed on:
24th September 2015

the Philips Xtreme Vision 360 LED W5W T10 4000K (Twin)

Good Quality, genuine product with reliable seller and fast shipping. I recommend power bulbs.

ROENGSAK

Reviewed on:
18th September 2015

Work perfect on my 2011 Skoda Octavia 4x4, no bulb error.

Andreas

Reviewed on:
31st August 2015

Finally an oem color led

This is the first led bulb that has a bright white light with a slight yellow tint, which looks whiter than oem but still keeps a factory look. Perfect for factory hid, but also goes well with philips 6000K ultinon hid, which has a slight yellow tint as well. These bulbs are bright, the 50 lumen claim is correct, and they have a very wide beam of light. Excellent in the license plate housings. These bulbs have a uniform beam color all the way around, unlike the osram leds that have a strong yellow ring around the edges and purple white in the middle.

Steve

Reviewed on:
7th August 2015

Perfect bulbs

These are perfect led bulbs for side parking lights. Second pair purchased for number plate lights.

Allen

Reviewed on:
24th July 2015

Philips W5W Led's

Excellent service from Powerbulbs. Posted to Australia very promptly received within 10 business days, great work. Using the W5W's as parking lights in an older vehicle they make up for the reflectors that are past their prime.

Alan

Reviewed on:
11th July 2015

Led i seem to light

very good quality and lighting also. recommed this product

Forestman77

Reviewed on:
30th June 2015

Good Bulbs and Service

These bulbs are well built and will light up your area well. Firm fit in the socket, not like those cheap eBay bulbs. It’s a whitish yellow. You can match your 4300K bulbs with these LED. If you have an orange side marker, these bulbs will make that area a bright yellow. They will not match the Phillips XV 4800K D2S HID bulbs. PowerBulbs is a fast and accurate company. They also provide discounts from time to time, with a 10% discount for returning customers. Take advantage of those discounts.

Devin D

Reviewed on:
2nd May 2015

Nice bulbs

Awesome LED bulbs. Perfect for small upgrade on W5W oem bulbs.

Ali

Reviewed on:
30th April 2015

Top quality

Looks great, much better match to HID 4300k then standard halogen.

Rufus

Reviewed on:
11th March 2015

Ffinally with the lens

hm.....I was using Osram 4000k LED. That time, Philips does not have the T10 led with front lens like this 360 version. (an older version of Philips t10 led do have front lens). so thought of to give it a try with this 360. I would say, the results is the same as OSRAM. in terms of brightness and color. So... there you go.

Alex

Reviewed on:
11th February 2015

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Philips X-treme Ultinon LED W5W 501 T10 Interior Car Bulb 4000K Warm White (Twin)

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Why buy Philips X-treme Ultinon LED W5W 4000K (Twin)?

Features and benefits

About Philips

Customer Reviews

Well worth it

LED W5W twin Bulbs

Perfect

Great improvement

Such an improvement

Perfect colour and low power

Great interior bulbs

Great

worth extra £

nice and white

Great buy

A great product

Philips Xtreme Ultinon 4000K

T10 led

Decent bulbs, just not 50lm as advertised.

Okay bulbs

Couldnt ask for more!

Bulbs

Great product

Worth paying the extra...

good cool white parking light

l200

Excellent

Nice bright lamps.

Awesome

Quality Item as Expected

Brilliant

Awesome

Amazing

Awesome T10 alternatives

Good

Philips 194/168/T10/W5W L.e.d

Great bulbs

good

Great buy!

Philips Xtreme Vision 360

Nissan Dualis +2

great replacement for regular w5w bulbs

Bright Light

Good bulb

Better & improved

1st class

Philips Xtreme Vision 360 LED W5W T10 4000K

Great LED's

the Philips Xtreme Vision 360 LED W5W T10 4000K (Twin)

Good

Finally an oem color led

Perfect bulbs

Philips W5W Led's

Led i seem to light

Good Bulbs and Service

Nice bulbs

Top quality

Ffinally with the lens

Philips X-treme Ultinon LED W5W 501 4000K (Twin)

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