... Power, Lighting, Electric Bicycle, Boat, Solar,Wind,Telecom,Emergency and Security SystemNominal Voltage:12VDischarge ... Solar street light system, solar power home system, Photovoltaic system, Alternative energy system, Electric Utility, Outdoor control equipment, Railroad Utility, control systems, power systems, wind ... 12V since 2001, mainly used for solar power, wind power, ups system, inverter system ...