This powder is a new type of long after-glow luminescent material, it can glow in the dark automatically after absorbing varieties of visible light. The process of absorbing-emitting can be repeated endless. The phosphorescent glow in the dark pigments are mainly applied as an additive in the paints, printing plastisol, plastics of all types, glass, porcelain glazes, inks and other transparent media to achieve the self-luminescent affects. Barrel