lluminate docks, decks, walkways and landings without the expense and maintenance of wiring. Highly efficient solar powered LED lights provide up to 10 hours of illumination after exposure to only 4-5 hours of sunlight. Fully automatic, on-at-dusk operation. For post, pier or dock mounting to enhance both visibility and safety. Fully weatherproof, built to withstand harsh marine conditions and will provide years of reliable service. 6"L x 6"W x 5"H, AA Battery.