Sinvitron G01 CREE LED Tactical Gun Flashlight 2-Mode 180LM Pistol Handgun Torch Light for Hiking,Camping,Hunting and Other Indoor/Outdoor Activities 2 switch modes: High and Strobe mode,Easy install and disassemble,without any tool,Exquisite,compact and lightweight design, convenient to carry around Light weight,with quick detach feature allows you to mount the light to most weapon with rails within seconds Very compact size,Dimension are 2 1/2 inches long, 1 inch wide and height is 1 3/4,takes 1 CR2 battery it can throws a nice beam of light Anodized aviation aluminum alloy and weather-proof body design,the white light illuminator will not hamper performance or shooter skill It's widely applicable used in the installation of pistol as a pistol flashlight, also a good choice in daily life or camping activity