Hi Grissly,
The Osram bulbs are a straight replacement for the original bulbs.
When replacing take extra care not to touch the glass as your finger prints become a hot spot and can lead to darkening of the glass and reduced output.
I have Nightbreaker Plus fitted to my Morgan and other cars in the family and have been happy with the beam and the lifespan. They were fitted over three years ago and still going strong.
To be honest if I had to replace them and all I could buy were the Nightbreaker Plus I would be happy to do that.



Ian
2011 Plus 4
Wild Mogs Reims 2019, Goodwood 2018, Isle of Man 2017, Carried on to Caramulo" 2016