D2S: Osram Xenarc 66240 CBI


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Product Details

The Best: Easily the best D2S headlight bulbs to ever hit the market, we are honored to offer the ultimate Osram CBI Bulbs. Indeed they are the "Rolls Royce" of D2S Lamps.

Amazing: What makes them so amazing? Osram's Xenarc 66240 CBI bulbs offer more lumens than the once industry-standard Philips 85122+ 4300K bulb, but with a higher Kelvin rating of up to 6000K. Whereas most bulbs lose lumens when their Kelvin rises, the Osram Xenarc 66240 CBIs still manage to give users the benefit of brighter light combined with whiter light - the best of both worlds indeed!

Backed: Bottom line? Everybody who uses them agrees they're among the best D2S headlight bulbs ever made. We've never heard a customer complain that their Osram Xenarc 66240 CBIs weren't worth the money, and most of the guys here at TRS use them in our own vehicles. No matter the preference, we have your Osram HID replacement bulbs!

Feedback: Don't just take our word for it, read the reviews on HIDplanet!

Genuine: The Retrofit Source is proud to offer these D2S headlight bulbs in their original retail packaging from Osram. We pride ourselves on being one of the last few distributors shipping genuine Philips & Osram lamps in the US. It is estimated that 80% of these D2S headlight bulbs sold through outlets such as eBay or Amazon are fakes.

Overview Video: Check out this helpful video to see how the Osram Xenarc 66240 CBI bulbs compare.

Trusted: For more than a decade, we've worked hard to earn our killer reputation. Car guys world-wide know that TRS carries the internet's best selection of high performance automotive and powersport lighting products at the best prices, and we've got the best, most knowledgeable team of real enthusiasts to help back it up. If we sell it, then you bet we've put it to the test on our own cars, trucks, and bikes. Need a recommendation on parts for your project? Got a tech question? Wholesale inquiry? Contact Us

Product Specs

  • What's Included

  • BULBS: 2x Osram 66240 D2S CBI

  • WARRANTY: 2 Years

  • MISC: Alcohol pads (to clean bulbs before use)

  • Compatibility


  • OSRAM PART #: 66040 / 66240

  • PHILIPS PART #: 85122 / 85122+ / 85122C1 / 85122WX

  • BMW PART #: 63 21 7 160 806 / 63217160806

  • AUDI PART #: N 104 457 01 / N10445701

  • LEXUS PART #: 909812002

  • MERCEDES-BENZ PART #: 910139-000001 / 910139000001

  • NOT SURE: Find my size!

  • Tech Specs



  • RATED LIFESPAN: 2000 Hours

  • KELVIN RATING: Up to 6000K / Pure White

  • LUMINOSITY: 3500 (estimated)

In Action

Product Reviews

4 out of 5 stars

HIDs Bulbs

Zoilo Ramirez Reviewed: 06.29.2019

I recently bought a pair of osram d2s cbi which is more attractive the way it looks,but I'm not really satisfy with it, so I tested with morimoto xb35 5500k I think xb35 is the winner and cheaper.......morimoto mini d2s projector 5.0,morimoto h11 hid relay, installed on my Toyota Camry se 2017
I'm just honest.....thanks guys if my review is not positive!

5 out of 5 stars

05 Acura RL upgrade

Edwin Real-Mendez Reviewed: 04.16.2019

Recently I became interested in retrofitting and upgrading my headlights. For the meantime I ended up buying these Osram CBI bulbs. These are definitely a upgrade compared to the OEM Acura bulbs, everything is much clearer and brighter then before

5 out of 5 stars

05 Acura RL

Edwin Real-Mendez Reviewed: 04.12.2019

Recently the OEM hid bulb on the right side headlight would begin to Flicker or go out. So I came to The Retrofit Source and purchased these Osram CBI bulbs. The shipping was fast and the product is great. Will definitely be coming back to buy more once j begin my retrofit and upgrades headlight project.

5 out of 5 stars

Worth it

Dustin Jones Reviewed: 03.29.2019

I don't have much to compare these to. My old bulbs were so cheap that the manufacturer didn't put their name on the bulb. So far these bulbs are exactly what I needed. They're bright, first impression of the color is pure white once they're warm, and they stay lit without falter (also unlike the last bulbs).

5 out of 5 stars

Better than Expected MUST BUY

Nicholas Corvelli Reviewed: 11.06.2018

I have a 2010 Maxima SV with HID equipped headlights and I switched over to these because one of my bulbs burned out. You get a pair of upgraded bulbs with these bad boys and put my OEM lights to shame. Due note though that when looking at the beam the tint is a very cool blue but these appear super bright white when looking directly at the light when its on. If you want more blue I would go with a 6500K. I can see everything on the road so much more clearly now! MUST BUY!

4 out of 5 stars

Good bulbs

Heath Bowen Reviewed: 10.05.2018

I've been running these in my '12 Ram w/quad. I did a custom retrofit of a 3" morimoto projector with clear lense. Throw distance is good, width is good, not a lot of foreground light(but enough to see potholes). Driving around in traffic they don't "seem" as bright as some other vehicles but when you get out on the rural highways the light output is usable and not self blinding. The only flaw or downside in my setup is at night in the rain I seem to loose depth, like it's hard to see potholes and dips in the road which is why I have 3200K HID foglights.

5 out of 5 stars

2007 Acura Rl

Justin Culbert Reviewed: 04.26.2018

The output over my stock hid bulbs is by far the best. the price for the set isn't bad when compared to dealer price for one bulb. I would recommend these to anyone looking to replace or update their hid system

3 out of 5 stars

Bright but not as white expected

Kiran Kumar HB Reviewed: 03.18.2018

It's bright though it's out put is not white as expected, I am using Morimoto 55W ballast. Morimoto bulbs.witj same Kelvin is more whitish. You may buy higher Klvn to get more white put.

5 out of 5 stars

Amazing Bulbs

Alessandro Di Paola Reviewed: 03.18.2018

I love these bulbs, they are the perfect color, white with a hint of blue. They illuminate the road very well, i can assure you they will be a great improvement over your old bulbs. I Highly recommend

5 out of 5 stars

Amazing Bulbs

Alessandro Di Paola Reviewed: 03.18.2018

I love these bulbs, they are the perfect color, white with a hint of blue. They illuminate the road very well, i can assure you they will be a great improvement over your old bulbs. I Highly recommend

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