【Adjustable focus & 5 modes 】 This torch can be adjusted from a very tight narrow beam to a wide beam. No matter if you want to look at it from far or near, all can do. With 5 modes for different situation: (High, Medium, Low, Strobe, SOS) 【waterproof & material】 Aerospace grade aluminum alloy, CNC precision machining, IP67 waterproof, threaded interface with high elastic silicone seals. wear resistance, anti-corrosion, anti-slip, daily waterproofing, can use on normal rainy days. 【ultra bright & Battery Life】 Need 1pc 18650 Battery (Not included) or 3pcs AAA Battery (Not Included). This torch is 20% brighter than most ordinary torch. The glare mode can last up to 180 minutes, and the low-light mode can last up to 10 hours.