Solar powered light charges during the daylight hours and automatically turns on at dusk to alert boaters of hazards. Easily attaches to buoys, docks, moorings, or anything else that needs night time identification. The light comes equipped with steady on mode, slow flash (15 times/minute), and fast flash (60 times/minute) all within the same unit. Available in white, red or green LEDs. All come with clear lens. Unit is constructed with a tough, waterproof (not submersible) plastic housing to keep the light working in all conditions. NOTE: Check with the local agency governing your waterway before installing.