The tcm-550xl compact tactical weapon-mounted light uses a super-bright led rated at 550 lumens working in conjunction with a precision-engineered total internal reflection (tir) lens to create a bright white beam of light rated at 136 meters.This weapon light features completely ambidextrous and intuitive rear-facing toggle switches on each side of the light to operate the momentary-on and constant-on lighting modes.The housing of the tcm-550xl is constructed from aluminum with a polymer rear housing.Includes four handgun-specific modular rail inserts (pre-configured with c1 insert for glock pistols), two spare allen screws, allen wrench and one cr123 lithium battery.Material: 6061-T6 AluminumType: Weapon LightOutput: 550 LumensBulb Type: LEDOal: 2.50"Weight: 2.50 ozBattery: CR123Proofs: Water,Dust Proof/Impact,Shock ResistantColor: Black AnodizedRechargeable: NoFilter Color: WhiteSwitch Type: Ambidextrous Toggle SwitchHazair: Yes