The ProTac 2L-X USB is a 500 lumen light with a rechargeable system. It comes with Streamlight's 18650 USB battery with integrated USB charging port. The Ten-Tap programming allows you to select one of three modes of operation: 1- high/strobe/low, 2- high only, 3- low/high. It is constructed of aluminum with an anodized finish, gasket sealed glass lens, anti-roll head and push-button tactical tail switch. Included is a battery pack, USB charge cord, removable pocket clip and holster.