The Hydro Glow SF60 LED Underwater light is part of Hydro Glow’s SeaFloor series of lights, they are “anchored to the bottom” style lights. The light fixture floats while a wait is used to hold the light in the desired location and depth. This model comes with a 50ft cord, a 120v to 24v power supply to provide safe current to the light and array of high output LEDs for maximum output and energy efficiency. This light is designed to be deployed so light fixture is floating about 3ft below the surface. This light is easy to install, just attach a small weight on the cord and drop in the water.