The Cyalume SnapLight is a yellow 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 SnapLight 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 military applications. The company, founded in 1970 and headquartered in West Springfield, MA, makes products under ChemLight and SnapLight brands. ChemLight products meet military specifications, and the company meets ISO 9001 standards.
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Great in power outages, safe for kids I always keep Cyalume snap light sticks in the house for power outages and sleepovers. We’ve had every color, but we like these yellow ones the best. The white ones are our second choice, but their light doesn’t last as long. The yellow ones last up to 12 hours and we haven’t had any “duds” in the pack. We bought some of the cheap ones at Walmart once, and half of them had either been snapped at the store, or they were duds. Since you won’t know if they work until you snap them yourselves,…
There really is no replacement for Cyalume chem/glow sticks… There really is no replacement for Cyalume chem/glow sticks. Many other glow sticks work well, but don’t have the brightness or the longevity of this brand. In context to other Cyalume glow sticks, these are not as bright as the green ones, but serves it’s purpose well. I normally use green for general use (camping, backpacking, power outages, etc) and yellows more for a “warning” or “caution”, as I did in this case. On a side note, orange or red does not create enough light…
Top of the line chem-sticks These are top of the line light sticks. I used cases of the military version in the Army and these are the same thing made by the same company just the civilian version.The civilian version (SnapLight) is better then the military version (ChemLight) as the civilian version has all the latest composition and chemistry updates allowing for more brightness and shelf life longevity (5 year as compared to 4 for the ChemLights). This is because ChemLights are required to meet a DoD…