Adventure Lights | The Guardian is the lightest, brightest, toughest light in its class. This light, unlike its competitors, is visible from all sides (omni-directional) and extremely impact resistant. In addition, the Guardian is very lightweight and will not restrict movement. The product comes with a variety of attachments that can be fastened to either the user or to equipment. 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 Expedition comes with battery and locking belt clip.