Cyalume 2-Inch ChemLight- The Cyalume ChemLight mini is a military grade light stick that meets the Defense Logistics Agency and NATO Maintenance and Supply Agency Specifications, and provides up to 4 hours of light. These Mini Chemlights come individually wrapped, have a four year shelf life, and provide 360 degrees of illumination.The Chemlight Mini is a short 2 Inches meaning it is perfect for cockpits, dashboards, medical kits, and other small areas. With a non-toxic chemiluminescent substance and high light output these chemlights are great for your emergency lighting needs.