In the rapid development of science and technology, the field of lighting is also constantly innovating. When we walk on the street, we will find a unique street light -- integrated solar street light is quietly emerging. Are you curious, what is so special about this street light? Why does it occupy a more and more important position in the field of modern lighting? Next, let us unveil its mystery.
One-piece solar street light, also known as integrated solar street light, adopts an innovative integrated design. It skillfully integrates solar panels, batteries, controllers, and light sources into one light body. This design greatly reduces the size and weight of the product, and brings great convenience for subsequent transportation, construction and installation.
At the top of the integrated solar street light are high-efficiency solar panels, such as SunPower's high-efficiency monocrystalline silicon panels. These panels have excellent performance and can capture solar energy with high efficiency. Even in less-than-ideal lighting conditions, as much sunlight as possible can be converted into usable energy. This efficiency is critical to maintaining consistent lighting, especially in areas with variable weather.
The energy collected by the solar panels is stored in lithium iron phosphate (LiFePO4) batteries. These batteries stand out for their long life and high safety. They have a high energy density, which means that powerful energy can be stored in a compact space. Their deep-discharge capability ensures that street lights remain bright at night, even if it is cloudy for several days in a row. Moreover, the long lifespan reduces the hassle and cost of frequent battery replacements.
The working principle is based on the photoelectric effect of solar panels. During the daytime, when there is sufficient sunlight, the solar panel actively absorbs solar photon energy and converts it into electrical energy. This electrical energy is stored in an orderly manner in the battery through the controller. And when night falls, or when the surrounding light becomes weak, the battery starts to play a role in supplying power to the DC light load, thus realizing solar lighting and illuminating the road at night for people.