To create this brilliant Green , ecologically responsible alternative to disposable chemical light sticks, Nite Ize teamed up with the high-quality flashlight manufacturer of Inova® brand products. . Powered by their popular, super-bright "Microlight XT," the LED Wand has more uses than we can shake a stick at. Simple to activate and operate, powered by long-life, easy-to-replace lithium batteries (included), the LED Wand illuminates in every environment. The wand itself is an extremely durable light transmitting polycarbonate rod. It has a polished end to project a spot-beam in addition to the illuminating glow. Because it's lightweight, waterproof, and neutrally buoyant, it's perfect for diving, boating and other water sports. It has four functions—high beam, low beam, strobe, and signal—and so makes an excellent signal marker, flashlight, emergency flare, and spot beam. (In summary, every car and boat should have one.)