20W solar street light

Solar lights are the result of automatic control system, chose the operating mode of the system and it will automatically control. Control mode is generally divided into three types: light starts control; light control off; timing start control and timing off control; the low light in the sun to set value light sensor control start working, start timing the same time. If you chose the particular hour to stop the work of the Solar lights then it will stop automatically. The system has two functions: First, battery charging during the day; Second, does light-control sensors, components of the charge and discharge with the rc. We generally use 18 watt or 36 watt low pressure sodium lamp as light source, because it's the highest optical efficiency in the light. Solar street lights with effective single crystal (multi crystal) silicon solar battery, sealed maintenance-free battery storage with power, using energy efficient lighting and modern lighting control circuit charge and discharge and with the nature of reliable, high luminous efficiency, brightness, user-helpful installation process, no need to lay cables and wires, no exchange of energy and electricity, the use of dc power supply, sensitive control, safe, reliable, energy saving, economic, environment friendly and practical (depending on configuration and the model, one can charge 3 to 7 days ), long lasting battery (solar cell can be 15 to 20 years, the battery can be 5 to 7 years).