GITD items are items which glow-in-the-dark after being appropriately "charged" with light!For the best nighttime glow, allow your GITD item to charge in natural sunlight or in UV/blacklight for a couple of minutes!Glows will typically be brightest directly after charging, and will fade over time.Glow brightness may vary based on charging time and method, glow color, and other pigmentation present in your item.