Not at all..but does it glow well?
Tritium is the way to go. But a lot of guns these days come with a front trit only. I was going to buy some to try on the rear sight, just on the off chance it would help a bit.Not poo-pooing and industry partner, but purchasing a phosphorescent sight, or sight paint, is in general a waste. Even if a phosphorescent product works, who is always going to have the foresight to "charge it" with light ahead of finding yourself in the dark and needing it?
Tritium is the way to go.