LUXPRO bright550 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. Access550 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 wont 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 Manufacturers Defects.Features:Pocket-sized LED handheld flashlightModes:High, Med, Low & Hidden StrobeOne-click off advanced electronicsAircraft-grade aluminumIPX4 waterproof ratingWrist lanyard includedLimited manufacturer’swarrantyTechnical Specs:Lumens: 550 – 40Run Time: 1h 45m – 20hBeam Distance: 335m – 85mBattery Count/Size: 4 AAAWidth: 1.48 inHeight: 5.7 inWeight: .38 lb