GeekHall.net

Yup, it is just a glow brick. It looks good, makes a climate in darker rooms, and all that it just looks cool . I have no idea what else can be said about this gadget so I will quote a review:

The glow-in-the-dark* pigment is trapped inside a real light bulb (just like the ones you have at home). Then the light bulb is encased in a solid block of Acrylic resin. The mysterious optical effect is caused by light diffracting in the tiny space between the glass of the light bulb and the resin - this space forms when the resin shrinks by a tiny amount during the production process. The polished surface gives a jewel like quality to the object. In a darkened room, or at night, the Glow Brick comes to life with a tranquil and subtle glow emanating from the pigment inside the light bulb. Size is 3.3″ x 3.3″ x 5″