Pen light features one watt lifetime Led bulb that never needs changing. Bulb is 12 times brighter than standard bulbs. Push button tail switch offers one-handed operation. Secure clip holds fast to pocket briefcase or tool bag. Aluminum body minimizes damage from dropping and abuse. Pen light offers 6 lumens and a 100-hour run time and runs on two AAA batteries.Light Source: Led. Light Output: 6 Lumen. Features: Pocket Clip. Controls: Push-button switch. Batteries: 2 x AAA. Battery Life: 100 Hour. Power Source: Battery. Color: Silver. Material: Aluminum Body. Country of Origin: China.