LED Lenser - H5 Headlamp, Black PERFORMANCE SPECS: max 25 lumens, max distance 70M, max battery life 20H, Water resistance rating IPX4. ADVANCED FOCUS SYSTEM: The Advanced Focus System (AFS) is the patented combination of a reflector AND lens to create a light system that provides both a focused beam for long-distance and a homogenous spill-beam for up-close reading. AFS means whether youre reading a map up close or focusing down the path to a landmark in the distance, your light will be easy on the eyes, clear and bright. COMFORTABLE DESIGN: Lightweight, with a soft headband, means wearing it for long periods of time is still comfortable. RED BACKLIGHT: makes it ideal for joggers or those on an evening stroll where cars or bikes might need to see you. 5 Year Warranty!