Anodized aluminum construction with non-slip rubberized comfort grip Multi-function push-button switch - choose from high, medium, low or strobe High for a high lumen, far-reaching beam: 425 lumens; 26,000 candela; 322m beam; runs 3 hours Medium for bright light and longer run time: 200 lumens; 12,000 candela; 219m beam; runs 5.5 hour Low provides a less intense beam and extended run time: 100 lumens;6,000 candela; 155m beam; runs 10 hours