GT-AAA PRO was developed as a tactical signal light designed for high intensity application, able to deal with any harsh environment. Processed with glue molding to get a complete seal and 200-meter (655 ft.) waterproof effect. With a transparent appearance, it has strong light transmission and viewability in 360 degrees. Rotary head switch of 3 working modes, high, low, and strobe, brings easty and convenient operation. GT-AAA PRO can be used widely for diving, caving, and land-based operations.