The high-performance PolyTac employs C4 LED and a Streamlight engineered reflector to bring you a virtually indestructible, super-bright nylon polymer tactical light. Deep reflector provides far-reaching targeting beam with a tight spotlight and optimum peripheral illumination. High-impact super-tough nylon polymer body features an unbreakable polycarbonate lens with scratch-resistant coating. Push-button tailcap switch provides one-handed momentary- or constant-on operation. Solid state power regulation provides maximum light output throughout battery life. IPX7 rated for waterproof operation up to 1 meter for 30 minutes. Operates on two 3V CR123A lithium batteries (included). Limited lifetime warranty. Peak intensity: 150 lumens, 15,000 candela. Runtime: 3 hrs. Length: 5.65". Weight: 4.4 oz.