Genssi 100W Polycrystalline Photovoltaic PV Solar Panel Module RV Boat 100 Watts - 12 Volts Polycrystalline Solar Panel is optimal for marine; dry camp; and other off-grid applications Reliable - EL tested solar modules; no hot-spot heating guaranteed Efficiency - Bypass diode minimizes power drop caused by shade and ensures excellent performance in low-light environments Easy Installation - Pre-drilled holes on the back; High wind (2400Pa) and snow loads (5400Pa); MC4 Connector 25-year power output warranty; 5-year material and workmanship warranty