The ProTac 90 is a super-bright, ultra-compact, right-angle tactical light features the convenience of multi-fuel technology. With its 90 degrees head and a multi-function clip designed to fit MOLLE and other gear, the light provides multiple wearing options for those requiring hands-free operation. 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, push-button tailswitch, and AR coated Borofloat glass lens. Included is one CR123A lithium battery and one AA alkaline battery.