This iteration of the X300 retains the ambidextrous momentary or constant-on activation switch to make its use intuitive and easy. The combination of a powerful 600-lumen output and the factory-focused Total Internal Reflection (TIR) lens produces a smooth beam free of holes or hot-spots with a tight center cone of bright light and a generous spill. Its lightweight aluminum housing is anodized with a matte-black to make it corrosion and abrasion-resistant, and gasket sealed for weatherproof performance. Powered by two included CR123 batteries, the X300 offers almost two hours of constant runtime.