1) Size: 10mm (dia.) series
2) Glowing time: 8- 12 hours
3) Non-toxic, non-flammable, non-radioactive, waterproof, windproof
4) No heat, flame and sparks, no battery required
5) Conform to EN71 and ASTM F963 standards
6) Storage life: 2 - 3 years
7) OEM acceptable