Light up your dock edge with these solar-powered illuminated cleats from Dock Edge. Attractive and functional, reliable mooring strength with cast aluminum alloy construction. Super bright white LED illumination on sides and base. Polycarbonate lenses. Waterproof. Automatic on-at-dusk feature. Viewing distance up to 325' away. Uses rechargeable/replaceable AAA nickel metal hydride (Ni-MH) battery. Up to 12 hours illumination from a single charge.