Solar Street Light Overview
Solar street light is powered by crystalline silicon solar cells, maintenance-free valve-regulated sealed battery (colloidal battery) to store electrical energy, ultra-high bright LED lamps as the light source, and controlled by intelligent charge/discharge controller, used to replace the traditional public power lighting street light, no need to lay cables, no AC power supply, no electricity costs; DC power supply, control; with good stability, long life, high luminous efficiency, easy installation and maintenance, high safety performance, energy saving, environmental protection, economic and practical advantages, can be widely used in urban main and secondary roads, communities, factories, tourist attractions, car parks and other places.
The solar street light system consists of solar panel, solar battery, solar controller, main light source, battery box, main light head, light pole and cable.
Working principle of solar street light
Under the control of the intelligent controller, the solar panel absorbs solar light and converts it into electrical energy through sunlight.
Components of solar street light
1. Solar panel
Solar panels for solar street lights supply energy components, its role is to convert the sun's light energy into electricity, transmitted to the battery storage, is the highest value of solar street lights components, solar cells, the primary use of monocrystalline silicon as a material, in solar cells to promote and influence the P-N junction hole and electron movement is the sun photons and light radiation heat, which is usually referred to as the photovoltaic effect principle . Today the power of photovoltaic conversion is higher. The latest technology now also includes photovoltaic thin film cells.
2. Battery
The battery is the power memory of the solar street light, which will collect the electrical energy to supply the street light to complete the lighting, because the input energy of the solar photovoltaic power generation system is extremely unstable, so it usually needs to be equipped with a battery system to operate, usually with lead-acid batteries, Ni-Cd batteries, Ni-H batteries. The selection of battery capacity usually follows the following guidelines: first of all, under the premise of satisfying the night lighting, the energy of the solar cell module during the day is stored as much as possible, together with the electrical energy that can be stored to satisfy the lighting needs of successive rainy days at night.
3. Solar charge and discharge controller
Solar charge and discharge controller is an important equipment for solar street lights. In order to prolong the service life of the battery, its charging and discharging conditions must be restricted to prevent the battery from overcharging and deep charging. In places with large temperature differences, qualified controllers should also have a temperature compensation function. At the same time, the solar controller should also have the street light control function, with light control, time control function, and should have automatic cut control load function at night, to facilitate the extension of street light working time in rainy days.
4. LED light source
What kind of light source is used for solar street light is the main goal of whether the solar lamps and lanterns can be used normally, usually solar lamps and lanterns use low-voltage energy-saving lamps, LED light source, etc., some use high-power LED light source.
5. Light pole light frame
Street light pole installation support LED street lights.
Post time: Dec-10-2021