Renogy 100W Polycrystalline Photovoltaic PV Solar Panel Module High modules conversion efficiency. Ideal output: 500 watt hours per day (depends on sunlight availability) Off-grid fully self powered systems as RV solar panels, Boat solar panels, and Marines solar panels Withstand high wind (2400Pa) and snow loads (5400Pa); resistant aluminum frame which allows the panels last for a long time 12 Volts battery use 25-year transferable power output warranty; 5-year material and workmanship warranty