Go Power! GPDL-5 Solar Module DURAlite Solar Modules Designed for mobile power users, these slim, lightweight, portable solar chargers are available in 5, 10, and 20 watts. They offer almost double the power of conventional thin-film solar panels. Unlike permanent solar options installed on RVs and boats, DURAlite Solar Chargers can be put out in the sun to charge a battery and then stored for later use. DURAlite modules are made from a laminate of fiberglass and sunlight-resistant polyester film and are virtually unbreakable. Mobile power retailers can now access this exciting market with a quality, rugged solar solution for maintaining starting batteries in your vehicle or boat. Go Power! DURAlite Series are easy to mount to any flat surface, with grommets in each corner. Complete with built-in blocking diode and 10' UV-rated cable with a 12-volt automobile-style socket plug.