Clipmate, Green LED, Black Body, with Batteries
3.5 in. black body of thermoplastic. 3-LEDs for 100,000 hours each 1-green and 2-white that are visible for more than a mile with a 360-degree rotating light. Takes 3-AAA batteries that are included for up to 40 hours. 2.4 ounces. Twist for constant on/off.