How much do you know about solar street lights? Why are they so popular in the market?
1. The invention of solar street lights has significantly enhanced human life.
1. For better urban development, street lights in cities have generally been replaced with solar street lights. These lights are reasonably priced, and the installation process of traditional street lights is relatively complicated, requiring extensive electrical wiring. Additionally, traditional street lights consume a significant amount of electricity and utilize high-wattage bulbs, resulting in dim lighting that is not conducive to urban illumination.
2. In contrast, solar street lights are relatively inexpensive, energy-efficient, and simpler to install, with no need for complex electrical wiring. The cost of solar energy systems mainly includes four components: the LED light source, the lamp post, the solar panel, and the solar street light controller.
3. The conservation of resources has become a global concern, and the invention of solar energy has brought significant convenience to human life. Moreover, Bitpott enjoys high solar radiation, making solar energy abundant. The prices of solar street lights range from approximately two hundred to one thousand yuan, which is much cheaper compared to traditional street lights. The variation in price can be attributed to different materials and brands. For consumers, brand also serves as a guarantee of quality. Most solar street lights can illuminate for eight to nine hours on a full charge, so this can be used as a reference for selecting quality solar street lights. When choosing street lights, consider the installation area, as different environments necessitate different specifications. For example, rural roads with widths less than ten meters, typically between four to six meters, require lamps that can adequately illuminate these widths.
4. Working Principle Description: During the day, solar street lights, under the control of an intelligent controller, utilize solar panels to absorb sunlight, converting it into electrical energy. The solar panels charge the lithium battery during the day, and at night, the lithium battery supplies power to the LED light source for illumination. The DC controller ensures that the lithium battery is protected from overcharging or over-discharging, and it includes functions such as PIR human sensing, light control, time control, temperature compensation, lightning protection, and reverse polarity protection.
2. Components of Solar Street Lights
1. Solar Photovoltaic Module
The module is generally divided into monocrystalline and polycrystalline sections, with each type further categorized into A side and B side. This explains the price discrepancies in similarly configured modules in the market, as their appearances can be indistinguishable. The module’s function is to convert solar energy into electrical energy that can be stored in batteries. Currently, the conversion efficiency of monocrystalline is around 17%, while polycrystalline is about 12%.
2. Special Solar Storage Batteries
Batteries function as storage and release systems for electrical energy, which can be mounted on the lamp post or buried underground. The battery box serves to protect the battery from corrosion by underground water. The working principle of the battery involves storing the electrical energy converted by the solar photovoltaic module during the day, and at night, it discharges upon receiving commands from the controller. The quality and corresponding prices of products from different manufacturers vary greatly depending on their technological capabilities.
3. Solar Controller
The core component of the lamp system, akin to the heart of a human body. If the heart functions well, everything else operates smoothly; however, if the heart fails, all other components become ineffective.
4. LED Light Source
Currently, better options on the market utilize flat lamp heads, with various light sources available. Traditional LED light heads are larger with poorer heat dissipation. Flat lamp heads are slimmer, offering a more premium appearance with built-in heat dissipation. Light sources vary between domestic and imported options, with imported products generally being of superior quality. Notable manufacturers include Philips and Cree, with variations in their LED sources based on material choices impacting price.
5. Lamp Post for Solar Street Lights
The lamp post is customized according to client specifications regarding the design and parameter requirements. Differences in size and style lead to significant variations in price.
3. Working Principle of Solar Street Lights
1. The working principle of solar street lights involves converting solar energy into electrical energy for illumination. The top of the street light houses the solar panel, also known as a photovoltaic module. During the day, these polysilicon-based photovoltaic modules convert solar energy into electrical energy stored in the batteries, allowing the solar street light to function under intelligent control. The solar panels absorb sunlight and convert it into electrical energy, charging the battery pack during the day. In the evening, the controller directs the energy to the light source, providing illumination at night when the battery pack powers the LED light source.
2. As solar street lights generate power using solar energy, there are no cables, eliminating risks of electric leakage and other accidents. The DC controller can ensure the battery pack is protected from overcharging or over-discharging while providing functions such as light control, time control, temperature compensation, lightning protection, and reverse polarity protection. No cable installation or AC power supply is needed, which means no electricity costs are incurred.
3. The low-carbon, environmentally friendly, safe, and reliable benefits of solar street lights have earned them widespread recognition from customers, resulting in robust promotion. Therefore, they can be extensively applied in urban main and secondary roads, residential areas, factories, tourist attractions, and parking lots.
