55 Lumen LED Dorcy Waterproof Floating Flashlight. Shock-absorbing rubber around the body gives this light a slip-free, comfortable grip. Features include 55 lumens of power, an incredible 17 hours of run time on just 3 AA batteries, and a beam distance of 220 feet. Not only waterproof, but this light also floats, making it perfect for swimming, boating, fishing, and other water-based activities. The Floating Flashlight includes a unique built-in carabiner clip in the tail cap and includes 3 AA DieHard brand alkaline batteries with a 10-year shelf life.