OSRAM Xenarc Cool Blue Boost D3S Xenon Car Headlight Bulbs (Twin) 66340CBB-HCB

Definitely beats the eBay special. I have these installed in my Audi A4 B8 my headlights still move, the brightness is amazing, the highbeams are out of control, from a stop sign if I flip in my highbeams I can see 3 stop signs down now. FINALLY!!! I complained about the price at first but now I don’t think I’d install any other bulb. The coloring isn’t as blue as I thought it’d be but honestly I don’t care bc I can see the road and I live on Long Island and I can now see potholes at night. FINALL!!!

I purchased these lights for my 2014 Ford F-150, with HID projector headlights. They arrived from the seller on time and they were authentic Osram's 66340 CBB's (unopened and verification sticker in tact). Originally, I was going to replace my HID's with OEM 66340HBI's, but I had seen some positive reviews online about the CBB's, so I took a chance. My primary concern was the 7K rating. I did not want the lights to look dark blue, or even worse, violet in appearance. I just wanted a more updated look over the originals (HBI's only have an up to 43K rating). The CBB's offer a slightly stronger and cleaner projection appearance on the roadway, than my old HBI's. In my opinion, their rating of 7K is really more like a 5K and I think they were worth it over the OEM's.

((3 month update ; I'm still very happy I bought these ! No issues so far.))I’ve only had these installed for three days but here is my initial review. I’ll update this as needed.So far, I am impressed. These lights are exactly as described... except for one characteristic. They do not reach the claimed 7000K color temperature. All of the leading automotive lighting websites have reported this too. But I knew this before purchasing these bulbs. Every other characteristic of these lights appears to meet or exceed advertised claims. These are upscale looking lights, without that ricey look. I’m happy with my purchase. I would buy these again but I hope I never need to, they are expensive.PROs :Very brightPure white light with a slight hint of blue.The hotspot is very very nice. It’s perfect.The beam pattern is as good as OEM or better.The beam reaches much much further down the road when I activate the brights.CONs :These do not reach the claimed 7000K color temperature. Maybe 5500-6000K. (I don’t see this as a con for me though.)

As soon as I got these, I ran the part numbers through Osram’s Trust Program. I was thrilled that they passed with flying colors. They’re super easy to install when you have easy access to the bulb housing. Unfortunately, Audi made it super complicated so I had to partially remove the bumper and pull out the entire headlight. Once removed, it literally took a minute or two to replace them. That’s all on Audi so I won’t dock any points from Osram.Now on to the the bulbs. Wow, they’re super bright and much clearer and whiter than my stock Phillips 4300K xenon bulbs. They yellowishness is for the most part gone and they’re clearly a sharp white. I’ve only had them on for about 3-4 hours, but the difference is definitely noticeable. It’s like going to xenon for the first time from halogen bulbs. I have to agree with most of the previous reviews - these are closer to 5500-6000k and far, thank god, from 7000k. I wanted bright white and I got it.Like my stock bulbs, these aren’t the greatest in the rain. I’ve read that others had better rain vision with stock xenon’s but mine sucked. They were great otherwise. So I won’t dock any points for the rain performance.So yeah, I love these bulbs and they’re amazing an upgrade if your coming from the stock xenon bulbs. Don’t worry, they only have a tiny hint of blue and won’t look “ricer” at all. I’ll post an update, with pics, after some extended night driving in dry conditions.

Bought this in July 2021. The light output itself is good white leaning towards a tinge of blue. Its on a kia sorento that is lightly used. Its now January not even a half a year and one of the bulb is working half the time. I double checked the connections and everything was good. Itll miss to light up on a cold start and maybe a few minutes of turning off/on the light it will eventually light up.... This is sign of a failing bulb. Not worth the money if im already getting problems under a half year of light use..

Item arrived perfectly and I’m very pleased with this order.

These lights are for sure an upgrade over the F150 OEM 4.3k that comes stock. As what other reviews state, they aren’t 7k once warmed up. They are more of a 5.5k which is a pure white. Aesthetically, they look awesome on the road. The light output is about on par with stock, maybe slightly better.Anyone of is doing this to a 13-14 F150 HID-equipped, the two little bolts holding the HIDs in are a T9. Make sure your tool is magnetic!! They easily fall out into the headlight housing.

My truck came with Osram bulbs so it was nice to see they offer some higher end options. These are noticbly brighter than the oem bulbs with possibly a small difference in color temperature. They are definitely not 7000k or even 6000k so if you are looking for a blue tint I’d recommend to go elsewhere. If you are looking for “white” and to actually be able to see down the road better than your stick bulbs then this is the ticket for you. I knew this going in from various research methods that these bulbs would be good and hit the 5000k mark I was looking for, even though they are marketed at “blue boost” and 7000k. Higher K rating = more color and less visible light and it’s sll about what you are trying to accomplish. For me it was the look that I actually changed the bulbs and improved lighting for night driving. They warm up a little blue but once they heat up they are pure white.