OSRAM XENARC NIGHT BREAKER UNLIMITED D2S HID Xenon discharge bulb, discharge lamp, 66240XNB-HCB, duobox (2 units)

Had a light fail on an Audi Q5, replaced it easily with one of these. It was easy to fit, light failure message on the dash cleared, nice bright white light, can’t notice any difference between this and the light on the other side. Very happy, especially not having to pay garage prices to get it replaced! The bulb came in a small box protected by a strong cardboard sleeve over the bulb inside.

Noticed that one of headlights had recently turned pink when I looked back in a multi storey car park. It then failed completely only a few days later. Wanted to replace with a trusted brand and retain the original colour temperature of the headlights which is around 4300 - 4500 Kelvin for best overall night visibility as higher colour temps look whiter but are not necessarily as good for actual night vision. Ordered these Osram Original Xenarc D1S 66140 with the hope that they would be the same as the Mercedes Benz dealer bulbs and low and behold when I removed the cover to replace the original lamp I was greeted with exactly the same Osram 66140 lamp already in place! Now credit must go to Osram as these are the ORIGINAL lamps fitted to the car so that's a very good lifespan.. After looking online I was a bit worried that the replacement process might be a bit torturous but in the end it was very straightforward as I am fortunate to have the access panels with a small thumb turn release, built into the wheel arch liners so really all you need to do is raise the car on the jack to improve the clearance and access the lamps. (It's probably possible to do this without raising the car but it's a bit tight) A quarter turn of the round cover inside reveals the back of the lamp which is easily removed with another quarter turn and the cable disconnects by pressing the small metal clip. Be careful not to touch the new lamp with your fingers as it will shorten the lifespan. There is a plastic ring that unclips from around the buib that you reuse on the new one. Just make sure the small lugs engage in the same place as the original and you're ready to refit the lamp with the same quarter turn. Refit the round cover to seal the headlight against any dirt from the wheel arch . All in all quite easy to do at a massive saving over main dealer cost and the initial impression is better light output than the old lamps. (Follow up: after a three hour night drive and the new lamps are clearly better than the old, main beam in particular, so I should have changed them sooner just as a matter of course)

Have purchased this bulb few a times now and can’t fault them. Would recommend, good quality.

Great quality bulb, was a like for like replacement. Pretty straight forward to swap out. Would recommend.

Hard to fault these. Bought these for an Audi A8 which was suffering one bulb going "pink", which meant it was on the way out. After doing a lot of shopping about and weighing up between OEM philips bulbs and non-OEM cheaper aftermarket ones, I opted for these. The main reason was that they were quite a bit cheaper than philips, but still a well known brand and promised extended beam etc. Also, changing bulbs on an A8 is a bit of a handling (either remove air fliter housing & move power steering pump or else take off wheel and remove wheel-liner to gain access!), so I weighed the extra cost against the hassle of having to replace them again if they went. Anyway I decided that the standard osram D2S was the best mix of cost and quality, then I saw the nightbreaker twin-pack for around £7 more than two standard ones, so I went for these. They came well packaged and looked to be good quality, as you'd expect from a German brand. They were definitely genuine, but after reading a few dodgy stories on forums I opted to buy from Amazon as a seller, so you would expect them to be genuine coming directly from Amazon. Anyway, fitting went well and they are both on my car now. I've only been out a few times at night in the city so far, but they are good, better than before I don't know. It'll take a late night out of town run to confirm that, but they do appear to throw light around the front of the car better and I no reason to expect they won't be good out in the real dark. As one other reviewer said already. They are a good obulb, but I wouldn't be "upgrading" to them unless I had to change a bulb anyway

Genuine bulb, made me realise how faded my olds ones were, Fitment was spot on (all be it a challenge due to the car itself not the bulb) Gives a great light pattern and spread, also not too blue so it doesn’t look tacky! Amazon packaging however was very minimal for such a delicate item, was in an envelope but it did arrive intact

Been working excellently so far

A clear difference in brightness. The whole beam area is consistent with no dark spots. Very much worth the cost. The colour temperature works well in damp/wet conditions. I find the more white/blue tint gets lost in those conditions. The difference between these and the night breakers isn't worth the £. These are the ones to go for. My car is a 2016 Mazda 3. I bought and returned a couple of cheaper bulbs and finally thought I'd spend some money. I'm so glad I did. I can now drive at night and see the road ahead.

Ottime, sostituiscono egregiamente le originali della mia SLK r171 oramai da un paio di anni

Sustituí las bombillas de serie de mi Toyota Auris por estas y se nota que iluminan con más intensidad. Las recomiendo.

Gran intensidad de luz, no tan blanca como la CBI, pero perfectamente válida, incluso con el firme mojado. Abre más y alcanza un poco más, no creo que llegue a esos 20 metros, pero poco le faltará. Buena compra.

Son idénticos a los de mi carro VW GLI 2013, no son clones si es un foco original Osram

Amazing product at less than half the cost! I had ordered this bulb for Corolla Altis 2010 model. I had done a complete research before buying this bulb. These are discharge bulbs not halogen one so please check that before buying. If I would have visited Toyota service center, it would have costed me almost ₹15,000 as I had already replaced one side bulb 2 yrs back. Please do thorough research before buying these expensive things. Also I myself have changed this bulb to avoid tampering and extra cost of fitting from local shop.