Renogy RNG-50DL 50W 12V Monocrystalline Lightweight Solar Panel Fully self powered off-grid systems Suitable for commercial and power station property The equipped MC4 Connectors make it easy to connect this unit to the solar cables in seconds Portable back up solar system Renogy solar panels are framed in heavy duty anodized extruded aluminum with drainage/mounting holes and generate Excellent performance in low light environments