OSRAM XENARC COOL BLUE INTENSE D1S, +150% more brightness, up to 6,200K, xenon headlight lamp, LED look, duo box (2 lamps), 66140CBN-HCB [Energy Class A]

Advertised as Cool Blue Boost …. Definitely has a cooler colour temperature than my previous set but it’s not blue like LED.Colour wise, I would say around 5800k. They were easy to fit, brighter than my last OEM set, has improved light pattern and throw.Do not be disappointed when they first strike with a yellow tint, it does require burn it time.Mine has now been in use for more than 20 hours and beginning to settle into a crisp cool light. I would recommend them

After 12 years on the original OSRAM Xenarc D1S bulbs, the Night Breakers were a welcome upgrade. HID bulbs do change colour and get dimmer over time, and it is recommended that these types of bulbs are changed every 3-5 years. So when I did get around the changing the bulbs I noticed that they were significantly brighter than the original bulbs and the colour shift meant I could see more detail on the road too. I should have upgraded sooner.I was able to check the serial numbers on the OSRAM website to verify they were genuine bulbs.

Replaced my 6year old osram original bulbs with the cool blue intense gen 2 and difference was immediately obvious. So much easier to drive at night now. As you can see the light is quite noticably blue, it just needs to be run in for a few hours to reach the final colour. Note - Amazon says its not compatible with 520D F10, however it is. Great upgrade.

Great buld. Worth every penny. Would highly recommend

Decent replacement bulbs, similar colour temperature to the OEM bi-xenon bulbs fit to my old Audi. It was an absolute mission to fit them in this particular car but that is no reflection on the product itself. Given how difficult it is to access the light cluster to fit them, it’s definitely worth replacing the pair at the same time; if one has gone then the other one is likely to be near the end of its life too.These are pricey bulbs, but again, you don’t want to be repeating the job, so knowing the brand and seeing the decent light output, it’s worth the money, but this is ultimately why I took one star off the review.

Doesn't appear blue at all, which is exactly what I wanted. A nice white light. I wouldn't say it's identical to LED (I have another LED-equipped car to compare against), but it is about as close as you can hope for from HID. I've read that they might change colour and turn a little whiter once burned in for a few hours - we will see. Very happy as is.

Unsure if genuine due to tampering to box and seal. However I now have two working bulbs compared to where I was before ordering.

Very easy to install and good brightness. However, not noticeably brighter (or more blue) than BMW F32 M Sport OEM bulbs. In any event - perfectly decent bulbs, brightness and colour.