Professional divers know that underwater, refraction rules out long ranges. Because of its axial collimator, the LED Lenser D14 attains an amazing strength of focus even at long ranges. Thanks to its newly-developed cooling system, unlike many other diving lights, the D14 can also be operated on land. Its beam distance when out of water is 590 feet and it is suitable for dives down to 197 ft. / 7 bar. Special magnetic parts allow for switch activation without mechanical parts, that could corrode over time.