Solar street light Sadui Solution and Best Product Type

1. Standards Compliance

• This proposal strictly follows the Saudi standard SASO 2927:2019 (Road Lighting Energy Efficiency and Functional Requirements). This standard mandates that LED streetlights must pass energy efficiency registration (EER certification), ensuring the product meets the Saudi standards for lifespan, lumen maintenance, switching cycles, etc. Uncertified products are prohibited from import.

2. Brightness Selection

• Illuminance (Lux): According to Saudi road lighting standards (referencing CEN/TR 13201-1), the average illuminance for main roads should be ≥20 Lux, with uniformity (minimum/average illuminance ratio) ≥0.4; for secondary roads, it should be ≥10 Lux, with uniformity ≥0.35. The proposal recommends an illuminance of 20-30 Lux for main roads, with uniformity <1.5 (achieved through optical design optimization).
• Luminous Flux (Lumens): Depending on the road width and height, the recommended luminous flux range for the light source is 10,000–20,000 lumens. For example, 8-10 meter lamp poles require an output of 12,000–15,000 lumens.
• Light Efficiency (lm/W): LED light sources should have an efficiency ≥130 lm/W to ensure energy saving (as required by SASO 2927).
• Uniformity: The illuminance uniformity (Uo) should be ≤1.5, achieved through lens or reflector design to avoid dark areas and glare.

3. Sélection de la température de couleur

• The recommended color temperature is 4000K–6000K. This range provides high visual clarity, reduces fatigue, and meets the high-temperature environmental needs of Saudi Arabia (high color temperatures help enhance alertness). Avoid temperatures below 3000K (too warm).

4. Height Design and Materials

• Lamp Pole Height: Based on road type:
  • Main roads: 10–12 meters (covering 4-6 lanes).
  • Secondary roads or local streets: 6–8 meters.
• Lamp Pole Material: Made of hot-dip galvanized steel (corrosion-treated) or aluminum alloy (lightweight), wind resistance ≥150 km/h, suitable for Saudi desert climate. The base design must meet wind load resistance standards (e.g., EN 40-5).

5. Indice de rendu des couleurs (IRC)

• CRI ≥80 (minimum requirement of SASO 2927), recommended CRI ≥90 to ensure true color reproduction (especially suitable for urban landscape roads). A high CRI reduces visual errors and enhances safety.

6. Street Light System Design Configuration

• Journées d'éclairage continu: Design autonomy for 5 consecutive rainy days. Saudi Arabia has abundant solar resources (annual average radiation of 2,200–2,500 kWh/m²), but considering the impact of dust storms, the battery capacity should be redundant.
  • Battery Configuration: Lithium Iron Phosphate (LiFePO4) battery, 12.8V or 25.6V systems, with a cycle life of >5,000 times.
  • Solar Panel: High-efficiency monocrystalline solar panel, conversion efficiency ≥21%, matched with an MPPT controller to improve charging efficiency.
• System Configuration Example (for main roads):
  • LED light source: 100W (luminous flux 14,000 lumens).
  • Solar panel: 18V/300W (monocrystalline).
  • Battery: 12.8V/100Ah (Lithium Iron Phosphate).
  • Controller: MPPT type, with intelligent dimming capability.

7. System Optimization: Automatic Lighting Control

• Intelligent Control Features
  • Light Control + Time Control: Automatically turns lights on and off based on ambient light (on at dusk, off at dawn).
  • Adaptive Dimming: Reduces power by 50% automatically during low traffic after midnight (as per SASO energy-saving requirements).
  • Capteurs de mouvement: Optionally equipped with human sensors to increase brightness when people or vehicles approach.
  • Surveillance à distance: Allows fault diagnosis and energy consumption management through the IoT platform (like 4G/5G).

8. Sadui Best Solar Street Light Recommendations from Luxman Light

Based on Luxman’s products https://luxmanlight.com/led-solar-street-light-outdoor, we recommend the following product series (products comply with SASO 2927 certification), all meeting the above lighting conditions and indicators.

Summary

This proposal complies with the Saudi SASO 2927 standard, and we recommend using Luxman SolarStar product series, which has high light efficiency, intelligent control, and durability suitable for the Saudi environment. When implementing, it is advisable to prioritize pilot projects on main roads and conduct regular maintenance (such as cleaning solar panels) to maximize ROI. For customization, please contact Luxman for SASO certification details and technical support.