Cyalume SOS survival signal light, 360 degrees of guaranteed light

Made in USA

The SOS is a lightstick provided with a cord. When activated, it becomes a particularly practical survival signal light generating a highly visible circle of light. By spinning its handle, a light circle is formed, visible at up to 1 mile (1.6 km) on land/sea level, and 3 miles (4.8 km) from the sky.