The Pro Tac HPL USB is a versatile tactical light designed for down range applications, that can charge from multiple sources and use three battery types; Streamlight 18650 rechargeable lithium ion battery, two CR123A batteries or li-ion batteries. The Ten-Tap programming allows you to select one o f three modes of operation: 1- high/strobe/low, 2- high only, 3- low/medium/high. It is constructed of aluminum with a black anodized finish, gasket sealed glass lens, anti-roll head and push-button tail switch. Included is a USB charging cord, pocket clip and holster.