The ProTac HL 5-X tactical light has an output from the LED that results in one of the brightest tactical lights available. The Ten-Tap programming allows you to choose one of three modes of operation: 1- high/strobe/low, 2- high only, 3- low/medium/high. It is constructed of aluminum with an anodized finish, sure grip rubber sleeve, anti-roll head and head mounted push-button switch. Includes four batteries and a wrist lanyard.