This Semi-flexible Solar Panel delivers enough juice to keep your remote 12-volt battery charged, for boats, cars, RVs or other applications.They're wafer-thin and light in weight, and flexible enough to bend up to 20 to fit a curved surface. Nature Power Semi-flexible Solar Panels are weather, water and corrosion resistant, so they will stand up to the corrosive environment on a boat or the outside of an RV.This 25-watt panel is light enough to mount on a window with the included suction cups, and durable enough to mount permanently outdoors on a range of vehicles. Six grommets allow the panel to be attached using line or fasteners. At only 11 5/16" x 22 3/16", this panel easily fits in a variety of locations.Includes blocking diode. A charge controller is recommended for solar panels 12-watts or above.Key FeaturesUltralight material is paper thin, measuring only .07" (2mm) thickFlexes up to 20 to curve and mold to any roofUp to 1.4A / 25W of output in bright sunCharger is able to keep your 12V batteries topped off enough to run medium-sized loadsPermanent installation without the need to drill holesTemporary installation with included suction cupsWeighs just 1.8 lb.Two-year limited warrantyInstruction Manual