Great vacation or secondary light for advanced diving at night or into wrecks and caves. High intensity white LED. 425 lumens / 5.5hrs run time. Waterproof to 150m. 376 grams weight. 20cm length. Corrosion proof ABS and Polycarbonate housing. Twist ON/OFF bezel sealed with two O-Rings for reliability. Bright centre spot beam. Uses three C alkaline batteries. Lanyard included.