For superior hands-free illumination in every situation, count on the Vizion I. Hit it, freeze it, dunk it—it will keep on working. The Vizion I has all the features of the original Vizion and is available either with the traditional black woven band or a unique contoured rubber band designed specifically to firmly grip your helmet. The Vizion I is remarkably lightweight and waterproof for use in the most challenging climates and conditions. Safety certified for use in hazardous locations. . Propriertary Compound Path Optics (CPO) permits high efficiency and compact size. Thermal Recovery System recycles heat from the LED to warm batteries for improved performance in low temperatures. Waterproof design for all weather use. 3 selectable beam patterns - Spot, Diffuse and Red Diffuse. High and Low power settings. Large push button control switch works with heavy gloves. LED lamp module can be removed from mounting strap for use as a portable work light. Rotating beam angle adjustment knob, no hinge to break. Available with either a non slip rubber helmet band or a woven band. High impact ABS, LEXAN and molded rubber construction for durability. Limited Lifetime Warranty.