SF100B 100W/120VAC - Underwater Dock Light - Blue Anchored To BottomHydro Glow Fishing Lights manufactures high quality, energy efficient, water proof lights for both above the water and underwater applications. Hydro Glow Fishing Lights utilize high output LEDs for great fish attracting capability. The fish attracting capability of our high output LED dock lights will enhance fishing, and just watching fish, right off your dock for the entire family. Factors such as water depth, clarity, boat traffic, and the desired appearance of the illuminated area should be considered when choosing the best suited dock light.The SeaFloor Series of underwater lights are our "anchored to the bottom" style lights. This means the light fixture floats so a weight is required to hold the light in the desired location and depth. The SF100B comes with a 50 foot cord, a 120v to 24v power supply to provide safe current to the light and an array of high output, blue LEDs for maximum output and energy efficiency. The SF100B underwater light is designed to be deployed so the light fixture is floating about 3 feet below the surface. Because there are no special transformers, ballasts and other parts, there is no need for an electrician. Simply attach a small weight (about 2 pounds) on the cord, drop it in the water and plug it up. Installation takes about 5 minutes. As with all our dock lights, we recommend turning off any other white lights on the dock. You will be amazed at the amount of fish you will see with the SF100B. Safe low voltage current, very bright and energy efficient best describes theh SF100B, a truely green product.