I'm sure this has been discussed, but I didn't see it in the archives.

Maybe I'm just getting older...actually no maybe about it...but it is getting increasingly difficult to drive my 86 Westy at night unless I simply keep the high beams on.  We all know the headlights just don't illuminate enough. 

Is there a definitive replacement unit or a higher intensity replacement bulbs that is reliable and will solve this?

Thanks all,
Art