The Cyalume Corporation makes the best light sticks available. These emergency lights are Non-Toxic, Non-Flammable and Weatherproof. Cyalume - Omniglow Chemical Lightsticks are perfect for aviation, marine, camping and survival applications. Government and private agencies have relied on Cyalume Technology for years. Ideally used as a signaling device, the SOS Survival Signal and Light is perfect for rescue and outdoor safety operations. The lightweight SOS Survival Light Stick has a protective plastic outer casing that remains attached by a 30" lanyard and acts as a handle. When the user spins the device, it forms a distinctive 4ft circle pattern visible up to three miles from the air and 1 mile on land. The SOS Survival Light Stick can be placed in an emergency kit, vehicle or simply carried in a pocket. The SOS Survival Signal and Light is available from Best Glide ASE in green; providing 8 hours of illumination and an Infrared non-visible color. The IR version is a controlled item normally used by military, police and rescue agencies. Please contact us if you are interested in the IR SOS Survival Signal. SOS Survival Signal and Light 8 hr Green, NSN 6260-01-334-4274 3 hr Infrared, NSN 6260-01-533-1547 You might also be interested in the PML - Personnel Marker Light and our Cyalume 6" Standard Lights Sticks in numerous colors and light intensities.