It features multiple functionality which includes a high, low and strobe mode. It also offers a zoom in and out function. Our Police Tactical light comes with a LUXEON 3W super bright LED. The beam of this LUXEON LED is incredibly bright and power efficient, lasting for many hours on a quick charge. It is built for rugged use and environments such as hitting, dropping, and tossing around. Aluminum is used for the entire external casing and the grip area features a rubber ring that prevents rolling and absorbs shock from impact. Black powder coating is applied to have a semi-flat sheen finish for durability. Shine the flashlight for hundreds of meters away, or use it to impair the sight of a suspected assailant. Utilizing two separate sources for power, this is one of the most versatile high output LED flashlights available. It comes with an environment friendly UltraFire rechargeable Li-Ion battery, capable of 3800mAh @3.7 volts. Alternatively, you can load 3 AAA batteries into the power magazine for universal power. The UltraFire battery recharges with a portable battery charger that plugs right into a standard 120 volt wall outlet.