Optimal Configuration and Illumination Simulation for 7-Meter Solar Street Lights Based on International Standards
Explore the ideal configuration for 7-meter solar street lights following international lighting standards like IESNA RP-8-18 and CIE 115, including LED wattage, panel sizing, battery capacity, spacing, and photometric simulation.
1. Introduction
With growing demand for sustainable lighting, 7-meter solar street lights are widely used in urban streets, residential zones, industrial areas, and parks. To ensure compliance with global standards, proper configuration and spacing are essential.
2. Reference Standards
This guide follows:
- IESNA RP-8-18 (North America)
- CIE 115:2010 (Europe/International)
For residential/collector roads:
| Lighting Class | Average Illuminance (lux) | Uniformity (Emin/Em) |
|---|---|---|
| Class S3 | 10–15 lux | > 0.25 |
3. Recommended Configuration for 7-Meter Pole
| Component | Specification |
|---|---|
| LED Lamp | 40–60W, 4000K, >160 lm/W, Type II or Type III optics |
| Solar Panel | 150–180W Mono-crystalline, 21% efficiency |
| Battery | LiFePO4 12.8V 40–50Ah, lifespan 5–8 years |
| Controller | MPPT, auto dusk-to-dawn with dimming |
| Pole Height | 7 meters, hot-dip galvanized, ≥ Wind Zone IV |
| Installation Angle | 15° tilt, single or staggered layout |
4. Illumination Simulation
Using 45W LED at 7m height, 28m spacing, single side installation on a 7m-wide road:
- Average Illuminance: 14–16 lux
- Uniformity: 0.30–0.40
- Energy Optimization: 30% dimming after midnight
5. Spacing Suggestions
| Road Width | Recommended Spacing | Layout |
|---|---|---|
| 6–7m | 25–30m | Single side or staggered |
6. Estimated Cost (USD per set)
| Component | Cost (USD) |
|---|---|
| LED Lamp (40–60W) | $25–$35 |
| Solar Panel (150–180W) | $45–$60 |
| Battery (40–50Ah LiFePO₄) | $60–$80 |
| MPPT Controller | $12–$18 |
| 7m Galvanized Pole | $70–$90 |
| Total | $212–$283 |
7. FAQ
Q1: Is this configuration compliant with European lighting norms?
Yes. It meets Class S3 per CIE 115 and typical RP-8-18 residential road requirements.
Q2: Can the system work during continuous rainy days?
With 3–5 days of battery autonomy, it ensures reliability even in cloudy conditions.
Q3: How often should the battery be replaced?
LiFePO₄ batteries typically last 5–8 years with minimal maintenance.
Q4: What if higher illumination is needed?
Upgrade to 60W LED and reduce pole spacing to 22–24 meters.
Q5: Can smart controls be added?
Yes. You can integrate Zigbee/LoraWAN-based IoT controllers with dimming, monitoring, and remote scheduling.
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FAQ
Sustainability
Can Queneng solar street lights operate in all weather conditions?
Yes, our solar street lights are equipped with high-efficiency photovoltaic panels and intelligent control systems, enabling them to operate even in cloudy or low-light conditions. The battery can store enough energy to provide lighting for several days during extended periods of cloudy weather.
Schools and Educational Institutions
What kind of maintenance is needed for solar lights?
The main maintenance required is cleaning the solar panels periodically to ensure they remain free of dust or debris, and occasionally checking the functionality of the battery and light.
Solar Street Light Luqing
Do Luqing solar street lights work in cold or snowy climates?
Yes, Luqing solar street lights are designed to work in various weather conditions, including cold and snowy climates. The solar panels are made to operate efficiently even in low temperatures, and the LED lights perform well in all weather.
Solar Street Light Luhao
What type of battery is used in the Luhao solar street light?
The Luhao solar street light uses high-quality lithium-ion batteries that store solar energy efficiently. These batteries offer long-lasting performance and can typically last for 3 to 5 years before needing replacement.
Solar Street Light Lufei
Can solar street lights be connected to the electrical grid?
Most solar street lights are designed to operate independently of the electrical grid, but some models offer hybrid systems that allow for grid connection as a backup during extended periods of low sunlight.
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What makes Luhui solar street lights different from other solar lights?
Luhui solar street lights use high-performance LEDs and advanced solar panels for superior efficiency and longevity. They are designed with enhanced durability, providing bright and consistent lighting in all weather conditions.
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