BB105 instrument lights working?

Yes, with two caveats:

1. We have logged a bug in which instrument lights fail to work while on Missions: https://bugs.miltechsimulations.com/bugs/rec1oxtDCIgtjvezw
2. The ADI, HSI, and other instruments do not have post lights, and are not illuminated, as per some cockpits in the real aircraft. We have received information that often this means the gauge is internally illuminated, which is being added as an option in the next update.

Thanks for the prompt response!