OSRAM XENARC NIGHT BREAKER LASER D4S, +200% more brightness, HID xenon bulb, discharge lamp, 66440XNL-HCB, duo box (2 lamps)

tldr: superb bulbs in focus and light output. I had an old pair of ds3 in my a6 and swapped them for a new pair because they weren't lighting the road well enough. The result was nothing changed - they still seemed to be lighting the hedges better than the road.... so I started digging for tech tests on headlights. These always came up with one of 3 headlights - with this one being the most powerful - the others being more blue-ish light which are a cooler look but apparently do not cut through heavy weather as well. (another Osram and a Philips). I decided to stump up for these as they were consistently the most powerful legal bulbs on test. The effect was startling. The road is well lit and the beam pattern is much more focused. It has transformed the A6's headlights - that are notorious in the forums for being dim. Now I can see clearly and drive safely at night and in the wet. Pro: Superbly bright, reduced light scatter, good colour balance for bad weather. Cons: they ain't cheap. disclaimer.. I haven't tried the other two front runners, and to be honest I'm not going to. These are great as it is. Highly Recommended. Edit: I saw some others saying that they weren't 200% brighter than their old bulbs. They are only claiming to be 200% more than the standard bulb as tested when the rating was set. No bulb runs atthe intro rating anymore. They are about 25% brighter than most bulbs which is good. I think most of the difference is the way they focus the light.

Firstly, ignore the claims about them being 200% brighter (as this isn't compared to decent HID xenon bulb). But they are definitely brighter than the OEM Philips HID bulbs in my BMW. They also light the road further than the Philips did, I dont know by exactly how much but it was certainly noticable. They're never going to look like laser headlights because they're not! They do appear to be whiter (even if not the whitest!). One of my bulbs failed so I decided to go with these (and im happy I did) but ultimately if both your headlights are working and your somewhat happy with them then its probably not worth the price these things cost. In terms of longevity, I cant comment as they only been fitted a few days but I've used Osram in other cars I dont think I've ever had to replace them before selling the car and so I trust these will be the same. In short; better than most OEM bulbs, probably the brightest road legal HID bulbs you can buy and would recommend the product, maybe not the price!

I fitted the new bulbs just a day ago however I work shifts so finishing at 23:00 last night gave me a chance to really see how good the OSRAM HID Nighbreakers really are especially as a big chunk of my commute is 30 miles down the motorway. Well I was not disappointed, the distance that the light is thrown on to the road in front of you did not seam any different to the standard OSRAM HID bulbs I replaced, however, these are considerably brighter and whiter, and I did notice that the light did seam to be a lot better at illuminating the passenger side of the road, the hard shoulder did seam to be a lot better illuminated than before. The only real negative I can say is that even though I appear to have got the bulbs at a very good price they are still very expensive compared to the Standard OSRAM HID Xenox bulbs, of which I could have purchased for £40 less and to be fair, standard OSRAM HID Xenox bulbs are still very good.

These replaced the standard Philips in a Skoda Octavia where I could see the old ones were beginning to dim a little. Rather than wait for a bulb fail in the winter, I replaced early. Certainly very bright and easy to fit. Why 4*? They are borderline too bright. The glare back from a reflective sign is strong and if you crest any kind of high point in the road and catch someone coming the other way with the part of your dip beam below the cut-off then they're all but blinded. Possibly not so great for safety and I have been flashed a few times. And you'll need to keep your headlight lenses clean for the same reason. I now find myself quite self-conscious about the cut-off at the sides 'lamping' people in their door mirrors on dual carriageway roads. It almost feels as if the beam has been slightly altered? It seems to be more a V than before, but realistically I think this is down to the sheer intensity making it more noticable. Otherwise very effective with an even white light spread. When on main they're like searchlights !

My Jeep was still on it's original bulbs (also Osram) But the colour temperature was too dull and orange. The beam did not project far at all and the definition was awful. A very taxing effort to drive at night. Fitting these have made an amazing difference. I can now see the actual beam pattern.....and the verge! They project almost twice as far, are a nice natural whit light (not blue) and driving at night is now a pleasure again! How easy they are to fit is down to your car. My Jeep needed things removed to gain access to the light housings. Other cars will be a lot easier. But it's worth the effort! All I'm waiting for now is to see how long a service they give.......

Replaced my nearly 5yr old (58 months to be exact) Philips Xtreme Vision 2 (XV2) on my 08 Mazda3 with these Night Breaker Laser on Jan 4th 2023. I noticed XV2 dimmed alot after a long roadtrip and used HID through it all in October. If I recall accurately, these Nightbreaker laser appears to be just a bit brighter than the XV2 after several hours of use. As with any HID bulbs, it takes a few hours before full output is realized. But Nightbreaker laser is still cheaper than the Philips XV2 (on amazon anyways). Color temperature wise, NBL is warmer than Philips when it was new and just how I like it. Overall, happy with NBL!

I don’t know if the price is justified, but these lights are extremely bright. If you’re looking for an extremely bright light, these are them

Bought this to replace my existing OEM osram HID bulbs that had done 2000hrs and had already started to colour shift and change to a purple tinge. These replacements are fantastic! Did 30 minutes of run-in on its first use. Super bright!

Bulbs were pricey relatively speaking but worth the upgrade. Difficult to find from a seller that was local (i.e. for next day shipping), so price/value wasn't bad all things considered along with assurances from other reviews that the bulbs were genuine. Bulbs are noticeably better vs. OEM bulbs in an Audi A6 (C7 - 2013).

Did my research and replaced the factory bulbs in my 2012 X5 with these - they are awesome. Video shows low beam, fog light and high beams