PERFORMANCE SPECS: max 180 lumens (min 20), max distance 120M (min 40M), max battery life 7H (min 25H), Water resistance rating IPX6. 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 you're 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. SMART LIGHT TECHNOLOGY (BASIC): Smart Light Technology allows you to program your light functions to the task at hand. Three light functions (Power, Low Power, and Defense Strobe) are easily operated with full or half clicks, ensuring your focus will be on the job, not on your light.