Gold Bead
Pros
Cons
White Bead
Pros
Cons
Tritium Lamps
Pros
Cons
Summary
The combination of a white dot and a tactical flashlight makes the most sense to me. Lifespan of the white dot is infinite. Tritium sights with a white ring on the front work almost as well in the daylight and better in pitch dark with the caveat of possibly illuminating yourself.