NORMALLY £19.99 - REDUCED FOR A LIMITED PERIOD
So, if it doesn't need batteries or use solar power, how does it work? Trapped inside the lightbulb is a Glow-in-the-dark pigment. 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, the 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. Use indoors or take outside in the evening. Perfect for summer garden parties. A novel way for free lighting, we love it and we're sure you will too!