Renogy 50 Watts 12 Volts Polycrystalline Solar Panel 13.4% high module conversion efficiency and excellent performance in low light conditions The panel is equipped with MC4 connectors compatible with Renogy MC4 adaptor kit so you can set up your system smoothly Sturdy aluminum frame protects the Solar panel from high wind, snow loads, and other harsh weather Fully self powered off-grid system and also suitable for commercial and power station property 25-Year transferable power output Warranty; 5-year material and workmanship Warranty