Well I’ve had the Osram Night breaker silver bulbs in for a week and the are definitely brighter and whiter than OEM.
They aren’t as white as modern led headlights, but are far less yellow than the original OEM bulbs.
I was initially a bit disappointed because they are distinctly more yellow than the “cool white” led side lights sat next to them, but if course that’s not a sensible comparison to make because they’re different technologies and I don’t think it’s possible to get an incandescent bulb with a half decent lifespan in the same colour range as led.
Hopefully I’ll get a few years out of these new bulbs l, apparently they are a good balance between brightness and longevity.
I might look at getting some “warm white” led sidelights to try to make the colour temperature more consistent in the cluster…