The NcSTAR Tactical Pistol Light with Strobe is an awesome low priced pistol flashlight. Manufactured from high strength aluminum. The light has an integrated quick release and is compatible with most railed pistol frames. Powered by one (1) CR123A battery the light produces 150 lumens of blinding light from its 3W CREE LED bulb. The light is activated by a power button on the left side of the body with the strobe button being located on the opposite side.