How to Choose the Right LED Traffic Signal Light – Complete Procurement Guide

公司管理员

Introduction

Choosing the right LED traffic signal light is crucial for urban traffic safety. Whether you’re building new roads, upgrading traffic signal systems, or procuring temporary traffic control equipment, multiple factors need careful consideration. This comprehensive guide will help you understand the key points for selecting LED traffic signal lights.

1. Determine Basic Parameters

1.1 Size Selection

LED traffic signal light size directly affects visibility distance and application scenarios:

Expert Recommendation: For urban main roads, select the diameter using the approved road design, sight distance and model-specific optical evidence.

1.2 Aspect Selection

2. Brightness & Visibility

2.1 Luminance Requirements

Determine the LED traffic signal requirements from the standards and authority rules applicable to the destination and project. Confirm the selected model’s evidence against those requirements rather than treating unspecified international standards as a single universal specification.

• Daytime: Confirm the required photometric quantity, unit and limits from the applicable specification
• Nighttime: confirm the specified photometric quantity, units and night-time performance for the applicable standard and model.
• Foggy conditions: Higher brightness required

2.2 Viewing Angle

Quality LED signal lights should have:

• Horizontal viewing requirements: confirm for the selected model
• Vertical viewing range: verify the required optical class and model test data.

Note: Confirm the product standards and editions required by the destination authority and project, and verify evidence for the selected model.

3. Power Type Selection

3.1 Mains Power Supply

Advantages: Assess supply reliability and installed cost for the site
Disadvantages: Requires cable installation planned for the actual site
Best for: Permanent road facilities

3.2 Solar Power Supply

Advantages: Solar supply can reduce dependence on grid cabling, but the system still needs the specified internal wiring, protection and installation. Evaluate environmental impact and installation flexibility for the actual configuration rather than assuming no wiring is required.
Disadvantages: Higher initial cost, weather dependent
Best for: Remote areas, temporary roads, rural roads

3.3 Battery Power Supply

Advantages: Highly portable, movable
Disadvantages: Inspect the battery and plan replacement according to condition and manufacturer guidance
Best for: Temporary construction areas, emergency traffic control

4. Key Certification Standards

Domestic Market (China)

• CCC certification: confirm whether the selected product falls within the applicable China Compulsory Certification scope and request the relevant valid certificate where required. Do not assume CCC coverage for every traffic-signal product.
• GB 14887: verify the applicable edition and model-specific conformity evidence

International Markets

• ✅ Confirm applicable CE marking requirements and supporting conformity documents for the selected model in the EU market
• RoHS: verify applicable substance-restriction requirements and model-specific conformity evidence.
• FCC requirements and applicable evidence: confirm for the selected product and US use case
• ✅ IP65/IP67 Protection Rating

5. OEM/ODM Capability Considerations

For customized requirements, confirm with manufacturers:

NJGX Advantage: 19 years of professional traffic light manufacturing experience, OEM/ODM support, served 35+ countries globally.

6. Cost Budget Reference

7. Supplier Selection Advice

Choose Manufacturers Over Traders

Verify Factory Strength

• 📅 Established years (10+ years recommended)
• 🏭 Assess factory capacity, processes and quality controls
• 📊 Confirm available production capacity and the proposed order schedule
• 🏆 Verify any claimed partnership, including a reference to Siemens, against current supporting records before using it in supplier evaluation.
• 🌐 Export experience

8. Sample Confirmation Process

1. Clarify Requirements: Specifications, quantity, certification requirements
2. Get Samples: Purchase 1-2 sets for testing
3. Test Verification: Check brightness, water resistance, stability
4. Trial Order: Confirm the minimum order quantity for the selected configuration; 50-100 sets is not a universal commitment
5. Mass Production: Long-term cooperation after quality confirmation

Summary

When choosing LED traffic signal lights, focus on:

• ✅ Size matches visibility requirements
• Check photometric test results against the required performance class
• ✅ Power type suits application scenario
• ✅ Has necessary certifications
• ✅ Choose a capable manufacturer
• ✅ Test samples before mass production

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