Tactical flashlight 5-function LED flashlight 40mm IRB LED bulb 3 brightness levels (low/50 lumens, medium/100 lumens, high/200 lumens) Highly focused beam 800 yds effective illumination 90 mins. max battery operating time 3 settings: push-button on, twist-on, remote pressure switch Rolling stop shoulder 1.07" dia. body 7.13" long 9.60 oz. 6V Aircraft-grade aluminum body Incl. 2 CR123A batteries, remote pressure switch, push-button on/off tail switch, quick-detach Lock Lever Weaver/Picatinny mount & manual WARNING: Follow battery safety procedures when you use your flashlight. Leaving operating lights in gun cases or any other confined areas with minimal heat dissipation will cause overheating and possibly battery explosion. Always make sure your light is off and will not be accidentally turned on during storage or transportation. For products equipped with a pressure switch, improper placement of the pressure switch on your gun may activate your flashlight when stored in a gun case or other confined areas. Always make sure the pressure switch is fastened to your firearm in a way that it will not be accidentally pressed and activate your flashlight, causing overheating and safety issues.