Since my last comment, I have tried them and they are useless as far as I'm concerned. I have reverted to Quartz - Halogen, which give a far more satisfactory light - where you want it!
I had the reflectors re-silvered as well, but the LEDs are simply in the wrong place for the Lambda reflectors. I will try them in the Augusta when I get it going again, but I doubt that they will be any good.
Regards, John