On the Nitesiters I heard some other talk of them on the neg side. So... I got Glonation paint. I like it & it works for me. Here's a link & a pic of my Shield.
Glow in the Dark Paint. Super Bright, Super Long Glow. Glows for hours instead of minutes.
Shielded
The glow in the dark paint is interesting but it requires a light source to recharge and unlike a battery cell the energy absorbed into the paint cannot be stored.
My front sight never sees light due to the holster and my pocket so glow in the dark paint would not be practical.
Tritium on the other hand is a chemical reaction so it does not require a light source.
Just my 2 cents.
Russ