The LP1035V2 handheld flashlight has a seamless push/pull focus head that is easy to adjust with one hand. This light has 4 lighting modes allowing you to get the right light for any situation. Access 570 lumens on High, 175 on Medium and 43 on Ultra Low. The Ultra-Low setting gives you an extended runtime of over 22 hours. This is crucial for emergency situations. Hidden strobe can be accessed by hitting and holding the on/off button for approximately 3-4 seconds. Hidden Strobe will stay activated until you turn it off the same way. (Hold the on/off button for 3-4 seconds.) This feature allows you to stay in security mode whenever you turn the flashlight on. It&';s also nice to deactivate so you don&';t need to cycle through strobe when it is not needed. With updated electronics allows you to turn the light off with one click after you&';ve chosen the mode you want to use. It only takes 3 second of use to activate the 1 click off feature. That way when you are ready to turn the light off you just hit the on/off button. (No longer need to cycle through all the modes to access Off) We have constructed this light with aircraft-grade aluminum making it extremely durable. The Tackgrip uniquely shields and protects the hand&';s grip from heat or cold, giving handling comfort and protection with or without the use of gloves. TackGrip is molded directly to the aluminum body for longer-lasting durability that won&';t slide or curl. The light is o-ring sealed and waterproof with an IPX4 rating. It comes loaded with 4 AAA alkaline LUXPRO batteries.