• CHEM LIGHTS GRADE 12 HOUR BULK PACK - Pack of 20 long-lasting Cyalume Glow Sticks meets DLA and NAMSA specifications and produces high light output that lasts for up to 12 hours.
• INDUSTRIAL GRADE LIGHT STICKS - Cyalume Emergency Glow Sticks grade elite light sources are standard issue for all US personnel to provide safe, convenient 360 degree illumination.
• WATERPROOF, NON-FLAMMABLE GLOW STICKS - Cyalume 9-42290 Chemlight Grade Light Sticks are safe to use underwater or in confined spaces, making them the ideal chem light lighter.
• SAFER THAN ROAD FLARES - Durable, non-toxic traffic light sticks are safer and more reliable than other signal flares and car flares used for essential emergency responses and safety planning.
• GREEN CHEMLIGHTS GRADE PACK - Glowing green chem light bulk set of 20 glow sticks emergency grade liquid lights that are easily activated with a simple bend, snap, and shake to immediately cover your surrounding area with a functional chem elite light.

The Cyalume Snight is a green industrial grade light stick measuring 6" long, for providing instant 360 degree illumination, that can be seen up to a mile away for up to 12 hours in optimal conditions. The Snight is waterproof, non-toxic, and non-flammable. To activate the light stick, bend, snap and shake the tube. The light stick has a hook and gate top, for hanging or attaching the light. Each light stick is individually foil-wrapped for protection from light and moisture, and has up to a five-year shelf life from date of manufacture. The durable, waterproof, external body of the light stick is made from low density polyethylene (LDPE), and is phthalate free for safety. The internal illuminating substance is non-toxic and non-flammable, and the components of the light stick are recyclable. The light stick floats in water and works best between 40 to 80 degrees F (4 to 27 degrees C), and although the light stick works at higher or lower temperatures, it is less effective in colder temperatures. All sticks are tested at a temperature of 72 degrees F (22 degrees C) to determine the illumination duration. Each 10-degree C (50-degree F) increase or decrease in temperature doubles or halves the reaction rate, and therefore the brightness and duration. For example, the same light stick that emits approximately 30 lux (a unit that describes how much light is visible over a square meter) at 15 minutes after activation at 24 degrees C (75 degrees F) will be half as bright but glow twice as long at 14 degrees C (57 degrees F). At 34 degrees C (93 degrees F), the same light stick would be twice as bright, but glow half as long. Storage at elevated temperatures (above 120 degrees F or 49 degrees C) will decrease shelf life and start to soften the plastic tube, and increase the risk of a leak. Exposure to cold temperatures will not affect the light sticks if they are warmed above 40 degrees F (4. 5 degrees C) before activation, unless they are frozen (which occurs at -15 to -20 degrees F, or -26 to -29 degrees C). Once light sticks have been frozen, they will still produce some light, but performance will not be as reliable. Humidity and atmospheric conditions do not affect the light sticks. Cyalume Technologies manufactures chemiluminescent products used for safety, industrial, and applications. The company, founded in 1970 and headquartered in West Springfield, MA, makes products under ChemLight and Snight brands. ChemLight products meet specifications, and the company meets ISO 9001 standards.