
ULTRA-X Glow Stone Sample Strip
AGT™ ULTRA-X Glow Stones were engineered to provide the brightest initial luminosity and longest glow persistence in the world. According to DIN 67510-1:2009 Third Party Lab Testing, these HYPER-LUMINOSITY glow stones exhibit an industry-leading Glow Power Rating of: 8796 mcd/m2 @ 1 minute. This equates to a +30% higher luminosity and glow duration than our previously best selling ULTRA Grade Glow Stones. With regards to glow performance, AGT™ ULTRA-X glow stones are 65% brighter and longer glowing than ANY commercial grade glow stones, glow in the dark gravel, glowing pebbles, natural stone glow marble, or glow glass chips commonly available online. They also outperform Quantum Natural Stone glow stones by over 33%! 8 minutes of sunlight = 15+ hours of eco-friendly glow! Engineered to outperform ALL other glow stones, glow marble, mini pebbles, glow rocks and glow stones available online.