Optronics floating lights are the most popular floating, fishing light on the market today. Waterproof Styrofoam housings. Molded sealed beam bulbs. Four-color box. Light floats on the water's surface to attract night-feeding fish. Energy efficient LED's draw less than 1/2 amp per hour. Light runs for days on a typical 12-volt battery. Includes 12-foot cord with fused 12-volt power plug for safety and convenience. Optronics Model A203 3-foot battery adaptor also included to extend cord and clip easily to battery.