Streamlight Septor LED Headlmap Series Flashlights are some of the most versatile headlamps on the market today. Featuring seven (7) super bright LEDs, each with 100,000 hours of operation life. You will never have to replace the bulbs in this Streamlight flashlights. The LEDs can be adjusted for short, medium, or long distance operation. The lens is polycarbonate - making it unbreakable. The rubber bezel is also o-ring sealed making the light water resistant. Thermoplastic construction makes the light shock resistant. The Streamlight Septor LED Headlamps Series of Flashlights is perfect for work in the back yard, construction, and hiking.