... ASTM, REACH Chemical Light Stick Glow Stick for Christmas Day 1) Glowing time: 8-12-48 hours ... &USA requirements.4) They can be safely used for: Concerts/Entertainment, Emergency Lighting, Night Clubs, Fishing ... popular culture, as they are frequently used for entertainment at parties concerts, and dance clubs ... They are used by marching band conductors for evening performances; glow sticks are also used ...