... parks,streets, roads, communities, etc. It contains a solar panel, a storage battery, a charge controller, an electronic ... energy-saving lamp, etc. It turns on and off automatically.The lighting ... battery: 12V 10Ah - 12V 200Ah 4) DC energy-saving lamp: 12V 3W - 12V 50W 5) Charge controller: 12V 5A ... a7) No need to pay electrical bill Solar Garden Light