Four times brighter and longer lasting than garden lights! The Solar Dock Light is a great way to light up your dock or pier. The solar panel collects the sun's energy all day, then provides 18+ hours of light on a full charge. Universal fitting design allows it to adapt to most common dock posts, so this solar light is the perfect addition to your dock to protect it from unwanted boating collisions. Interchangeable LED lights let you personalize your lighting system by choosing different colored bulbs (item #99751).