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 15-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. Four grommets at the corners allow the panel to be attached using line or fasteners. At only 14 3/8" x 14 11/16", this panel easily fits in a window.Panel comes permanently wired to a 12' lead with an SAE connector at the end. Panel also includes an accessory bag containing a short lead with an SAE connector at one end and bare wires at the other for connection to a charge controller; and a short wire lead with SAE connector at one end and alligator clips at the other for connection to a battery. Suction cups are also included for mounting to a window or other smooth surface. A charge controller is recommended for solar panels 12-watts or above.Key FeaturesUltra-light material is paper thin, measuring only .07" (2mm) thickFlexes up to 20 to curve and mold to any roofUp to 847 mA / 15W of output in bright sunTrickle charger is able to keep your 12V batteries topped offPermanent installation without the need to drill holesTemporary installation with included suction cupsWeighs just 0.97oz.Two-year limited warrantyInstruction Manual