Glow in the Dark is the process of absorbing surrounding light and storing it. The stored light is then released once the surrounding becomes dark. This release can be seen in the dark! as a bright glow.
A 5 to 10-second exposure, with the correct type of lighting, is all it takes to fully charge up Glow in the Dark material. After a full charge, it can glow brightly for at least 10 minutes.
AllNightGlow, is a method of charging Glow Material at regular intervals, to keep it Glowing All Night Long. The main purpose of this would be to reduce the power consumption of lighted signs.