This demonstration video discusses and shows the features of Big Blue´s 170 Lumen LED Handheld Aluminum Torch. This light features state of the art ultra bright LED (Light Emitting Diode Technology). These bulbs last 30 times longer than standard light bulbs. The high intensity white LED light travels farther underwater for maximum visibility and truer colors. The body of the light is made of machined aluminum alloy for great durability. The LED bulb is shock and impact resistant. For an upgrade, this light is available with Auto Flash Off (AFO). This great feature shuts off the light for 2 seconds while taking a picture which prevents spot light from accidentally ruining your picture. It is depth rated to 328 feet and only takes 4 AA Alkaline batteries to operate.