Submersible to 500 feet, this compact 7.5-inch dive light features a high-powered xenon lamp and a pistol-grip magnetic trigger-switch that operates outside the body to prevent leaking. The switch can be easily removed for washing off sand and dirt. A back-up lamp is stored underneath the reflector for emergencies. Designed with negative buoyancy, the light does not require lead ballast and is completely watertight thanks to a three-surface compression-fit o-ring. A lanyard on the end secures light to wrist. Made of rugged ABS resin that resists chemicals, corrosion, and extreme temperatures, the light has thermoplastic molded accents and an impact-resistant polycarbonate lens. It's powered by eight C alkaline batteries (not included) and weighs 36.64 ounces with batteries. Battery burn time is four hours.