Nature Power Polycrystalline Solar Panels take the sun's energy and turns converts it into electric current. These solar panels are high efficiency 12-Volt solar panels featuring sturdy aluminum frames and high transparency tempered glass tops. They have a scratch resistant and anti-reflective coating to help keep the solar panel in good shape for many years and comes with a 25 year power warranty. They are rugged enough to be permanently mounted outdoors or even on mobile applications such as RVs and boats. The entire module is sealed against moisture. Installation time is minimal thanks to plug and play connections. These Solar Panels are warranted to retain at least 80% efficiency for up to 25-years. This kit contains 3 of our 110-Watt solar panels, a 750-Watt power inverter, a 30 Amp Charge Controller and all the wiring to get you started. 12 Volt Battery NOT INCLUDED (Power Inverter color may vary).