New from OSRAM, the Xenarc Cool Blue Boost gives you the chance to bring an intense ‘hyper blue’ light to your vehicle.

Why buy the OSRAM Xenarc Cool Blue Boost D1S (Twin)?

Following on from the success of the popular Cool Blue Boost halogen range, OSRAM have reached dizzying new heights of innovative, stylish automotive lighting with this, the new Xenarc Cool Blue Boost range. With the colour temperature of the bulbs achieving up to a whopping 7000K, the Xenarc Cool Blue Boost range far surpasses most bulbs in the market in its ability to produce a blue-white light.

As a manufacturer, OSRAM has committed itself unwaveringly to the task of producing innovative automotive lighting that defies the expectations of the customer and the competition: the Xenarc Cool Blue Boost is proof. The intense blue-white light of the Xenarc Cool Blue Boost is achieved as a result of OSRAM’s implementation of a special filling system in the bulb as opposed to the conventional coating that bulbs with lower colour temperatures normally use.

Along with a ‘hyper blue’ light tint, the Cool Blue Boost offers a sturdy design and impeccably accurate beam projection thanks to OSRAM’s highly revered manufacturing standards and precise engineering. All of which lets you enjoy the supreme style of a blue-white headlight as well as the safety of a well-made bulb that doesn’t dazzle other drivers. The Xenarc Cool Blue Boost simply promises incomparable style in an expertly designed, reliable package.

(Please note – due to xenon technology, HID bulbs will achieve their optimum Kelvin rating after a short amount of use. Please allow approximately 20 hours for them to reach their true colour.)

Features and benefits

  • Up to 7000K colour temperature
  • Vivid blue-white light colour
  • Bulb for styling purposes – no extra light produced
  • Not road legal – off-road usage only


Providing over 100 years of excellence in innovation, with customers spanning 150 countries – OSRAM is German manufacturing at its finest. Forward-looking, forward-thinking technology made by a company with a passion for intelligent light.  

OSRAM Trust Program

OSRAM have implemented safety features into the manufacturing process enabling you to authenticate your xenon or halogen lamps in an easy 2-step online check.

Product specification

Number of Bulbs2
Bulb TypeStyling
Kelvin Rating7000K
Road LegalNo
RangeXenarc Cool Blue Boost
Light Improvement
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

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


Canada Tracked Delivery 7-10 Working Days $4.99
*US Standard Delivery
Tracked Delivery
7-10 Working Days
5-7 Working Days
Standard Delivery
Tracked Delivery
7-10 Working Days
5-7 Working Days
New Zealand Standard Delivery
Tracked Delivery
7-10 Working Days
5-7 Working Days
*Europe Standard Delivery
Tracked Delivery
7-10 Working Days
5-7 Working Days

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


Bright but could be brighter


Got these for my mk2 focus ST as the standard bulbs did no cut it on a dark motorway. Tried some cheap upgrades but again looked weak and to greenish blue. Thought I should bite the bullet and by some branded bulbs. After doing a bit of research these CBB had been given good reviews and although rated at 7000k they are closer to 6000k. A lot of improvement over the standard 4300k bulbs but was expecting a bit more light, could be down to being a 06 plate car with old ballasts though! Over all I would recommend these but try to get them when you have a discount code or their on offer as their RRP is a bit steep.


Reviewed on:

OSRAM Xenarc Cool Blue Boost D1S


Great lights. There is a color deference bit more brightness. Over roller these light are worth it


Reviewed on:

Best buld


Best bulb I ever use. Density is just right for me. Thank you.


Reviewed on:

Good, but not 7000k


Good upgrade over my E93s oem Phillips 4300k bulbs that were 10 years old however the colour is 5000k with a hint of blue depending on the angle you view it. Still though, it's a very nice even light output, still bright despite not being one of osrams "max light" bulbs. It's a nice balance of a quality bulb and colour, with good output. I previously used a cheap Chinese 6000k bulbs and although it was bluer and looked nicer the output was poor, beam had hotspots and they blew after a year. So it's worth investing in quality bulbs


Reviewed on:

Works great!


Light output is really good and color is just a little less than advertised. Not sure why they're not street legal though... Fuss free purchase from powerbulbs as usual!


Reviewed on:

Happy Customer


My goal was to produce a brighter/whiter color comparable to an LED light. I own a 2015 BMW 4 series and wasn’t happy with the stock bulb, but didn’t want a distinct blue color. If you want blue bulbs this isn’t your bulb, despite the “up to 7000k”. However, if you want a superior whiter/ brighter bulb than your stock, with a “hint” of blue color, look no further. Unless, you want to replace your headlights to LED, I don’t think you’ll come closer with another xenon bulb.....I recommend .


Reviewed on:



Very bright compared to the stock bulbs I replaced. When first installed they were pure white. Now that they've fully broken in (have quite a few hours on them) they've developed a slight blue hue. This can be seen better in photos, but still subtly visible to the naked eye. I wish one if these companies would come out with a bright bulb with the old-school slight indigo/violet hue.


Reviewed on:

The brightest, period.


Was time to replace the original bulbs on my ‘13 Bmw 5 Series so I decided to replace them with these Osram CBB because of the good reviews. The color is not 7000k, the color is closer 5500-6000k which makes for a great pure white color that’s much crisper than the originals. The brightness is a huge difference. I have yet to pull up next to another car where their lights wash mine out on the ground ahead. Bulbs are fully broken in by now and I couldn’t be any happier with the results.


Reviewed on:



This buld are much better that my 1 year old Osram CBI (like +30%). There are not 7000K, there are closer to 6000K color (pure white). I think they're the best choice in this color temperature.


Reviewed on:

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OSRAM Xenarc Cool Blue Boost D1S (Twin)

4.7 9 customer reviews

List Price: $333.49 USD You save $130.07 USD

$ 203.42 -40%
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