I love glow in the dark stuff so I am very familiar with the disappointment that comes with glow in the dark purchases; not sensitive, doesn't really glow, doesn't really last, etc. However, I charged it up with maybe a minute of light and it lasted ALL NIGHT! I am SO happy! Of course the glow doesn't look JUST like the picture, but it does look a LITTLE pink so I'm happy lolSee full review