LUXPRO bright 550 lumens LED handheld flashlight with TackGrip. A compact flashlight that puts off a clean light beam. With 4 lighting modes, users can get the light they need for any situation. Access 550 lumens on High, 185 on Medium, and 40 on Ultra-Low. The Ultra-Low setting gives you an extended runtime of up to 20 hours. This is crucial for emergency situations. Hidden Strobe is a mode that can be accessed and exited by pressing the on/off button for approximately 3-4 seconds. Updated electronics allows users to turn the light off with one click after using the selected mode for more than 5 seconds. Constructed with aircraft-grade aluminum and TackGrip making it extremely durable. TackGrip is patented, exclusive to LUXPRO, and is molded directly to the aluminum body for longer-lasting durability that won t slide or curl. This light is o-ring sealed and water resistant with an IPX4 rating. It operates on and comes loaded with 4 AAA alkaline LUXPRO batteries and is backed by a Limited Warranty Against Manufacturer s Defects. Product Features Pocket-sized LED handheld flashlight Modes: High, Med, Low & Hidden Strobe One-click off advanced electronics Aircraft-grade aluminum IPX4 waterproof rating Wrist lanyard included Limited manufacturer's warranty Product Specifications Lumens: 550 - 40 Run Time: 1h 45m - 20h Beam Distance: 335m - 85m Battery Count/Size: 4 AAA