The Guardian Expedition is rugged, easy to use and can be seen for over 5 Km or 3 Miles. With its dual functionality of flashing and steady modes, the Guardian lasts over 240 hours on a single battery. Whether hiking, camping, running, walking or racing through the woods on a mountain bike, the Guardian is the one light to have when being seen is a must. Waterproof to 300 feet and almost indestructable, with an operating range of -40 to +50C, the Guardian is available several different versions to suit multiple applications. The Expedition comes with battery and locking belt clip.