LMJ-CN&reg; 3w Led 200 Lumens Single Mode G60 Blue Light Flashlight Torch for Fishing, Hunting Use- Blue Light Designed to mount on certain hand pistols, rifles and shotguns with proper mounting equipment. for Fishing, Hunting Use -bule Light Input Voltage: 3.7-4.2V Battery Configurations:1 x18650 3.7V Battery(Batteries not included) Blue Light Flashlight Torch