With the vigorous development of new rural construction, the sales of solar street lamps have surged, and many rural areas consider solar street lamps as an important option for outdoor lighting. However, many people are still concerned about their lifespan, believing that solar street lamps are new products with immature technology and a shorter lifespan. Even though manufacturers of solar street lamps offer a three-year warranty, many still have reservations. To alleviate these concerns, today we will scientifically analyze how long the lifespan of solar street lamps actually is.
The solar panel is a complete power generation device made up of solar cells, which have a long lifespan of about 20 years.
A solar street lamp is an independent power generation and lighting system consisting of a battery, pole, LED lamps, solar panel, and solar street lamp controller.
The solar street lamp pole is made from Q235 steel, treated with hot-dip galvanization, providing strong rust and corrosion resistance, ensuring it will not rust for at least 15 years. It does not require connection to the grid; during the day, the solar panel converts sunlight into electrical energy, which is stored in the solar battery, and at night, the battery powers the LED light source to emit light.
The primary type of battery currently used in domestic solar street lamps is lithium batteries. Lithium batteries have a lifespan of at least 5 years, and normal usage can extend this to 7 years without issue. The designated lifespan of a battery depends on its cycle discharge life; if the battery’s capacity is compromised and only suffices for daily discharge, it will significantly reduce its service life. Generally, we calculate the battery capacity based on 5-10 times the daily electricity usage to ensure longevity.
This concludes our discussion on the lifespan of solar street lamps. Additionally, the lifespan of solar street lamps also depends on necessary maintenance. During the initial installation, it is crucial to adhere strictly to construction standards, and it is advisable to configure the components reasonably, increasing the battery capacity to extend the lifespan of solar street lamps.
