How to Choose Solar Street Light for Highway Projects?

Highway lighting is one of the most demanding applications in outdoor illumination projects.

Unlike residential or urban roads, highways require:

• Higher brightness

• Longer lighting distance

• Strong wind resistance

• Stable power supply

• Long lifespan design

Choosing the wrong solar street light system can lead to poor visibility, safety risks, and high maintenance costs.

This guide explains how to correctly select solar street lights for highway projects from an engineering and procurement perspective.

1. Determine Highway Lighting Requirements

Before selecting a system, you must define project conditions:

• Road width (2 lanes / 4 lanes / 6 lanes)

• Traffic volume (low / medium / high)

• Lighting standard (lux requirement)

• Weather conditions (wind, rain, snow)

Highway lighting is usually designed for 20–50 lux depending on country standards.

 2. Choose the Right Wattage

Wattage directly affects brightness and coverage.

Recommended range:

• Small roads: 30W–60W

• Secondary highways: 60W–100W

• Main highways: 100W–200W

 For most highway EPC projects, 100W–200W solar street lights are commonly used.

3. Select Proper Pole Height

Pole height determines lighting coverage and safety.

Standard highway pole heights:

• 6–8 meters → small roads

• 8–10 meters → secondary highways

• 10–12 meters → main highways

Higher poles require:

• stronger steel structure

• anti-corrosion treatment

• wind resistance design

4. Battery System Selection (Critical Factor)

Battery is the most important component in highway solar lighting systems.

Recommended type:

✔ LiFePO4 lithium battery

Advantages:

• 3–5 year lifespan

• high temperature resistance

• stable energy output

• suitable for EPC projects

❌ Avoid cheap gel batteries for highway use due to instability.

5. Solar Panel Sizing

Solar panel must match energy consumption.

• High-efficiency monocrystalline panels are recommended

• Oversizing panel improves winter performance

• Poor sizing leads to nighttime failure

6. LED Chip and Optical Design

Highway lighting requires:

• High lumen output (120–160 lm/W)

• Wide beam angle (140°–150°)

• Anti-glare design

 Poor optics = dark spots + unsafe driving conditions

7. Wind Resistance and Structural Safety

Highway environments often face strong wind loads.

Ensure:

• Hot-dip galvanized steel poles

• Wind resistance ≥ 120 km/h (standard minimum)

• Reinforced mounting brackets

8. Smart Control System (Optional but Recommended)

Modern highway systems may include:

• Motion sensors

• Time-based dimming

• Remote IoT monitoring

Benefits:

• energy saving

• longer battery life

• lower maintenance cost

9. Supplier Capability Matters More Than Price

For highway projects, supplier selection is critical.

Check:

• OEM/ODM capability

• Certifications (CE / RoHS / ISO / UL)

• Production lead time (important for EPC)

• Engineering support capability

 Low-cost suppliers often fail in long-term highway projects.

10. Common Mistakes in Highway Solar Lighting Projects

• Choosing wattage too low

• Ignoring wind load design

• Using cheap batteries

• Wrong pole height selection

• No engineering simulation

Conclusion

Choosing solar street lights for highway projects is not just a purchasing decision — it is an engineering system design process.

A proper system must balance:

• brightness

• stability

• durability

• long-term cost efficiency

For EPC and municipal projects, investing in a reliable system is always more cost-effective than choosing the lowest price option.

We provide professional OEM/ODM solar street light solutions for highway and infrastructure projects, including:

• Engineering design support

• Fast delivery (3–5 days samples)

• Bulk production (15–20 days)

• CE / RoHS / ISO / UL certified systems

Contact us for customized highway lighting solutions.