8 Inch Solar Piling Light for Salt and Fresh Water Rated Docks, Decks, Pilings, Wharfs, Bulkheads, Boardwalks and Marinas Black Highly recommended for beautifying and illuminating docks, wharves, marinas and the like Runs for a specific time on the brightness level set by the user Offers a maximum operating time of 20 hours on its lowest brightness setting and 6 hours on its highest brightness setting Uses a built-in solar panel to automatically charge its internal battery during the day Salt Water and Fresh Water Rated