The ProTac USB headlamp has all the great features of the ProTac HL headlamp with 1,000 lumens, USB rechargeability and Streamlight 18650 USB battery compatibility. The Ten-Tap programming lets you choose one of three modes of operation: high/medium/low. It includes diffuser lens for spot/flood functionality as well as interchangeable red and green lenses. The headlamp is constructed of aluminum with an anodized finish, gasket sealed glass lens and 90 degree tilting head. Included is a USB cord, rubber helmet strap and adjustable elastic head strap.