Solar street lights are mainly composed of solar panel, controller, LED light, battery and pole. These stand-alone lights are designed to provide bright and reliable lighting for streets, pathways, and public spaces even in remote or off-grid areas. With advanced long-lasting lithium battery, solar street lights can ensure the durability and stability in all weather conditions. Additionally, their easy installation and low maintenance make them an ideal choice for urban and rural areas alike.
1. Meaning of solar street light
The solar street lights is to make use of the power of the sun to provide sustainable, reliable and cost-effective illumination for urban and rural areas. The solar street light is designed with high-quality materials and advanced technology, ensuring a long lifespan and low maintenance requirements. With a sleek and modern design, these lights blend seamlessly into any environment while providing bright and consistent light output. They are also equipped with intelligent control systems for automatic operation and energy conservation. Whether for public roads, pathways, or parking areas, the solar street light is the ideal choice for environmentally-friendly and efficient outdoor lighting solutions.
2. Classification of solar street light
solar street light are categorized based on their degree of integration:
- ALL IN ONE SOLAR STREET LIGHT: integrates the solar controller, solar panel, lithium battery and LED light into one unit
- ALL IN TWO SOLAR STREET LIGHT: integrates the solar controller, lithium battery and LED light into one unit, solar panel as another unit
- SPLIT SOLAR STREET LIGHT: all components are separate
Each type of solar street light offers unique capabilities suited to diverse lighting requirements from pathways to highways.
3. Characteristics of different solar street light
- ALL IN ONE SOLAR STREET LIGHT: highly integrated, easy transportation and installations,but limited by its strength, it is more suitable to make small output light which is installed in yard, passenger passways or village roads.
- ALL IN TWO SOLAR STREET LIGHT: half integrated,need to make wiring between LED fixture and solar panel, but since the solar panel is separated, it can be produced with bigger output, so it has wider using environment like yard, village roads, or even highways or express ways.
- SPLIT SOLAR STREET LIGHT: it can be applied in all using environment, but it is a little harder for client to make the wiring, also transport is also more complicated.
4. How to choose watt of solar street lights
Generally speaking, when you buy solar street lights from manufacturers, professional sales will design street lamp renovation plans for you. The salesmen of solar street lights manufacturers have rich experience in engineering application. The following methods are for reference only:
1. Solar street light testing area
The test road is 15 meters wide, the solar street light is mounted on 10 meters high, the light arm is 1 meter at an elevation angle of 15 degrees, and the light is tested on one side; the testing area is 15mx30m , considering that the narrower road has low requirements for the lateral light distribution of the soalr light, and provides applications at the same time The data of the area of 12mx30m is for reference and selection of roads of different widths.
2. Solar street light test data
The data is making the average after testing three times , and the light decay is calculated according to the results of the first and third times. The time span is 100 days and the lights are normally turned on and off every day.
3. Evaluation of luminous flux, luminous efficiency and illuminance uniformity of solar street light
The luminous efficiency is to divide luminous flux by input power;
The calculation formula of luminous flux is the average illuminance x area;
The illuminance uniformity is the ratio of the minimum illuminance and the maximum illuminance of the measuring points in the lateral direction of the road.
In the application of street light engineering, how many wattage street lights should be installed on the road should be combined with the actual street light effect. On the same road, the 100W LED street lamps provided by manufacturer A can meet the lighting requirements, while the street lamps provided by manufacturer B may only need 80W or even lower wattage to meet the lighting requirements.
4. DIALUX simulation
professional solar street light manufacturer can make a dialux simulation to achieve the performance required, so you may know what Watts of solar street light needed, then choose right type of solar street light accordingly.
5. Factors to Consider When Purchasing solar street light
When procuring solar street light, several critical factors influence the decision-making process:
- Performance: Ensure its brightness is enough for the road.
- Reliability and Maintenance: Assessing downtime risks and upkeep requirements.
- Warranty: minimum three years
- Manufacturer experience: Check its experience in the industry, better to get some project reference
6. Conclusion
In conclusion, solar street light is now being an ideal lighting solutions for these countries which have terrible electrical infrastructure, it can be a stand-alone operation without rely on power grid, at the same time, it has much lower maintenance cost compared with conventional AC street light.
