SUREFIRE XC1-B COMPACT PISTOL LIGHT, 1.5V, WEDGE LOCK UNIVERSAL/PICATINNY RAIL MOUNT, 300 LUMENS, ONE AAA Ni-MH RECHARGEABLE BATTERY, TYPE III ANODIZED ALUMINUM, BLACKKeep It Simple. SureFires smallest and lightest weight WeaponLight couldnt be simpler to use. Developed to fit compact, railed handguns, it delivers 300 lumens from a single AAA battery. Our proprietary MaxVision Beam reflector shapes the high performance recoil proof LEDs light into a wide, smooth sphere of light thats ideal for closer range identification of threats. Ambidextrous switching provides both momentary and constant on activation options.