Increase nighttime visibility on your dock, walkway or patio with the Solar Dock Light (Pack of 2) 84507 from Sunforce Products. This solar light is weather proof and designed with a rugged stainless steel frame so that it can be left out and used year round. The Solar Dock Light (Pack of 2) is worry free because it will turn on automatically at nightfall and off automatically at dawn. Located in the solar panel is dusk to dawn light sensor that recognizes how bright it is outside and triggers the light accordingly. This light also comes with a manual on/off switch located on the underside of the product to override the auto-turn of the light. The Solar Dock Light also comes with the added convenience of not requiring any wiring during the setup process. This light has a truly hassle free setup process that consists of removing from the light from the box, setting it up where you would like to use it and then let the sun do the rest. Upon first use this light will require about two days of sunlight for its initial charge and after that a day of charging should give you about 8 hours of illumination at night.