I have Trijicon's on my FNP-40. They work awesome at night! In the daylight they look and function just like a standard 3-dot sight. No, they do not glow during daylight, but personally I wouldn't want anything that did. To me anything that did that would be too bright at night.
I always throw this in when the subject of night sights comes up: I have found that the most useful feature of the tritium night sights is that I can easily find my gun in absolute darkness, and because of the 3-dot system, I know exactly how to position my hand on it first time.
Are you looking for something that actually glows in the daytime or just keeps the same color?