• LightShape circular orange light marker for providing illumination for up to 4 hours.
• Measures 3" in diameter and has an adhesive back for attaching to surfaces.
• Chemiluminescent substance is non-toxic and plastic body is phthalate free for safety.
• Four-year shelf life from date of manufacture for a maintenance-free alternative to other lighting.
• Can be used for many applications including evacuation procedures, medical triage, trail marking, and more.

The Cyalume LightShape is an orange circular light marker measuring 3" in diameter, for providing instant illumination, that can be seen up to a mile away for up to 4 hours in optimal conditions. The LightShape is waterproof, non-toxic, non-sparking and non-flammable. To activate the circular light marker, bend, snap and shake the marker. The light marker has an adhesive back for attaching to surfaces (peel off the paper backing to adhere). The markers come in boxes of ten, and each marker has up to a four-year shelf life from date of manufacture. The durable, waterproof, external body of the light marker 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 marker are recyclable. The light marker floats in water and works best between 40 to 80 degrees F (4 to 27 degrees C), and although the light marker works at higher or lower temperatures, it is less effective in colder temperatures. All light sticks and markers 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 or marker 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 or marker 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 or casing, and increase the risk of a leak. Exposure to cold temperatures will not affect the light sticks or markers 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 or markers 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 or markers. Light sticks and markers are chemiluminescent substances in plastic tubes or other shapes that provide hours of illumination in a number of safety, industrial, and applications. They are waterproof, non-flammable, and non-sparking, which makes them useful in hazardous situations where sparks or flame could cause an explosion. Duration is determined by the chemistry of the formulation. Brightness is affected by temperature: the warmer the temperature, the brighter the light will appear. All markers are tested at a temperature of 72 degrees F to determine the illumination duration. Viewing distance can be affected by temperature, moisture, and other elements. Exposure to direct sunlight can reduce shelf life and effectiveness. 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. What’s in the Box? * 10 circular light markers in a cardboard box