NcStar 150 Lumen LED Compact Flashlight QR w/Strobe Features NEW Strobe feature! Strobe Flashlight feature will disorientate your target and extend battery life. Quick Release Mount that will fit most Weaver/ Picatinny type rails. This model will fit Weaver/Picatinny type rails found on most mid size and compact semi-automatic pistols not Sub-Compact and Pocket pistols . Push Button Rubber Switch on the left side of flashlight and a Push Button Rubber Strobe Button on the right side of the flashlight. 3 Watt Bright CREE LED 150 Lumens Peak Output Uses 1 CR2 Lithium Type Battery Included Smaller/Shorter Battery than the CR123A Length 2.4 Weight 2.6 oz. with Battery NcStar Pistol Rifle 1W Led Flashlight/QR/Compact Pistol Rifle 1W Led Flashlight/QR/Compact