The tlr-7 weapon-mounted tactical light is ultra-lightweight and low-profile, features the latest in led technology and provides 1.5 hours of continuous runtime from a single lithium battery.The rail clamp is designed to rapidly attach/detach from the side of compact and full-frame weapons.It is constructed of aluminum with an anodized finish, polymer housing, borofloat glass lens, and ambidextrous push-button side switch.Included is one cr123a lithium battery.Material: AluminumType: Weapon LightOutput: 500 LumensBulb Type: LEDOal: 2.15"Weight: 2.40 ozBattery: CR123A LithiumProofs: WaterproofColor: Black AnodizedRechargeable: NoFilter Color: WhiteSwitch Type: AmbidextrousHazair: Yes