Thanks for the informative posts.
My RV4 and RVX have Bob Olds landing lights
which use good old WalMart Square plastic automotive halogen headlights. The originals still work after 20+ years probably due to limited use. (Night flying for sport isn't as appealing when you spent 24 years doing it with NVG's
Installing LED's will take a bit of engineering
however, I've already added them to my favorites list on Amazon...
PS:Now, how do I R&R the old school yellow DRL's on my Toyota Tacoma for some LED's?