Bulbs for R129 Instrument cluster

[RichardF]

I know the little 1.2w bulb is an R509T. But what number is the bigger bulb for the background illumination?

It has a black base 2w and a bit longer (27mm) with a slightly broader base.

 

[RichardF]

It's the big one with the black base I'm after.

 

[Ted]

Is that not a capless plugged into a base?

 

[RichardF]

Yes I think it's an R512.