LED Submarine Light Diving Flashlight Underwater Torch Waterproof CREE Q5 Lamp (Yellow) 2 Modes: high and low beam- twist the head cap to the left to turn it on and change modes of lighting by screwing the head cap. More than 25 meters effective distance of light under the water. No On/Off Switch, controlled by turning the head cap to the left to turn it on and to the right to turn it off. Battery: 4 * AA battery (Not Included) Super bright Q5 LED flashlight.