Princeton Tec Aqua Strobe LED

The Aqua Strobe LED promises to grab attention when activated, wherever you are.
A single AA battery fuels the strobe. A simple twist operation turns the Aqua Strobe LED on and also helps to prevent accidental activation and produces 60 flashes per minute. A buoyant cone keeps the light pointed up whether found underwater or at the surface.
The Aqua Strobe LED can attach to your BC, tank, or anchor line, as well as a PFD or pack and comes with both a Velcro strap and lanyard.