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Nanjing Gaoqiao Traffic Technology Co., Ltd
NJGQ has 17 years history in traffic light design and making since 2006, we also have partnered with Siemens (China) since 2016.Our focus and advantages are: traffic light & traffic light controller, whether it is normal power or solar power, portable or mobile, normal or solar warning traffic light, all kinds of traffic signal board, as well as light poles
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Regular SMD vs 5MM LED for Traffic Signals: Differences, Pros & Cons
date:2026-04-02 16:36:11
Choosing between Regular SMD LEDs and 5MM LEDs for traffic signals directly impacts safety, cost, and usability. This guide simplifies their key differences, pros/cons, and use cases—optimized for Google SEO and practical application.
1. Core Definitions
Regular SMD LEDs
Surface-mount chips (e.g., 3528/2835 models), 0.03W–0.2W per unit, compact, mounted on PCBs via automated SMT production. Ideal for modern, space-saving traffic signals.
5MM LEDs (Through-Hole)
Traditional cylindrical through-hole LEDs, 0.06W–0.1W per unit, inserted through PCB holes. Mature technology, widely used in retrofits.
2. Key Differences (Table)
|
Feature
|
Regular SMD LEDs
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5MM LEDs
|
|
Power per Unit
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0.03W–0.2W
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0.06W–0.1W
|
|
Design & Mounting
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Compact, surface-mount (SMT), space-saving
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Cylindrical, through-hole, bulkier
|
|
Lifespan
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50,000–70,000 hours
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30,000–50,000 hours
|
|
Installation Cost
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Low (automated SMT, low labor)
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Higher (manual/semi-automated mounting)
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|
Best For
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Modern/smart traffic signals, large-scale projects
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Retrofits, low-budget, basic signals
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3. Pros & Cons
Regular SMD LEDs
- Pros: Space-saving, even illumination, low labor cost, long lifespan, compatible with smart traffic systems.
- Cons: Slightly higher upfront cost; heat buildup if densely packed.
5MM LEDs
- Pros: Low per-unit cost, simple technology, easy retrofitting for old signals.
- Cons: Bulky, uneven light, higher labor cost, shorter lifespan, less compatible with modern designs.
4. Practical Selection Guide
Choose based on your project needs:
- New/smart traffic signals: Regular SMD LEDs (space-saving, low long-term cost).
- Retrofitting old signals: 5MM LEDs (compatible, budget-friendly).
- Large-scale projects: SMD LEDs (automated production saves time/money).
Always On Your Way, Always Protect You! Top Chinese Traffic Light Manufacturer: NJGQ
ur focus and advantages are: traffic light & traffic light controller, whether it is normal power or solar power, portable or mobile, normal or solar warning traffic light, all kinds of traffic signal board, as well as light poles.