See Blitz 3 Tracker

The SEE-BLITZ was designed to reliably achieve maximum visibility and perform in all climates and extreme environments. Flash rate, brightness and battery life were the three parameters balanced against each other for optimal survivability. The rugged housing is manufactured from engineering plastics, marine grade stainless steel and nickel silver for the conductive components.��The SEE-BLITZ 3 Tracker provides a constant light feature enable aircraft / helicopter pilots and crew of small boats to maintain sighting and recover survivors without losing spatial perception caused by the intense flash.