* AGT™ Glow Stone will neither shrink nor expand in concrete – even in the most extreme of weather conditions.
* Once seeded into wet concrete, these glow stones create a unique night glow effect unlike any other type of battery or electricity-based ambient lighting solutions.
* Specially designed for use on surfaces where there could be barefoot traffic. Glow stone have rounded/softened edges.
* These glow stone can be combined with AGT™ 1/8″ Glow Stone to create more ‘depth’ in the surface design.
* Charging Time: 8 minutes of exposure to daylight and these glow stone will glow for 10 hours.
* Lifespan: 20+ years.
* Glow Degradation: 1-2% per year. For example: In 20 years, they will still glow at 60%-80% of the original luminosity.