The AEWL1 weapon light utilizes a Cree XPG2-R5 260 Lumen LED and 1-CR123. One of the smallest in its class the AEWL1 mounts on standard gun rails and features a unique Flapper switch, designed for left or right-handed users, activated by your index finger for momentary or steady on. The security lockout feature assures the LED weapon light will not inadvertently illuminate. Water and shock resistant to 3ft., the AEWL1 is one of the smallest and light weight weapon mount LED lights in its class.