? Features two lighting modes: Constant on and THRO® (Temporarily Heightened Regulated Output) mode for maximum brightness - 300 lumens; 69m beam; runs 3 hours - THRO®: 1,000 lumens; 110m beam; 35 second burst ? Thin, ergonomic design fits comfortably in your hand and provides clean pocket carry ? Easy to use rotatable switch with battery level indicator ? Deep carry pocket clip attaches on either side of light ? USB-C rechargeable - Lithium polymer battery charges in 3 hours ? Durable, anodized aluminum construction; polycarbonate lens ? IPX7 waterproof to 1m; 1m impact resistance tested