Traffic Light Warranty: 1, 2, 5 Year Coverage Explained
A traffic light warranty is a promise about how long the LED modules, driver and housing will keep performing. Understanding what is covered, and for how long, protects the total cost of ownership of an intersection.
Warranty periods at a glance
| Period | Typical meaning | What to check |
|---|---|---|
| 1 year | Basic workmanship and material defects | Whether LED modules are included |
| 2 years | Common industry standard | Coverage for driver and module |
| 5 years | Extended coverage on premium modules | Degradation and luminous output terms |
1. Why warranty matters for traffic signals
Traffic signals run continuously, often in harsh weather, and a failed indication is both a safety risk and an emergency maintenance cost. The warranty tells you how confident the manufacturer is in the LED modules, drivers and sealing, and gives you a defined remedy when a component fails early.
2. What a warranty typically covers
Most traffic light warranties cover manufacturing defects in the LED modules, the driver or power supply, and the housing, for a stated period. A good warranty also states the luminous maintenance, meaning how much brightness the modules will retain over time, rather than only whether the light is on or off.
3. What is usually excluded
Warranties normally exclude damage from incorrect voltage, improper wiring, lightning or surge without protection, physical impact, water ingress caused by an unsealed cable entry, and unauthorized modification. Read the installation requirements because a warranty claim can be rejected if the signal was not installed and earthed correctly.
4. LED module quality drives the warranty
The LED chip, driver and thermal design determine how long the signal stays bright. Signals built with high-quality chips and good heat dissipation can realistically offer a 5-year warranty, while cheaper modules may only be backed for 1 to 2 years. The warranty length is therefore a useful proxy for build quality.
5. How warranty links to IP rating and materials
A 5-year warranty means little if the housing is only rated IP54 and lets moisture reach the modules. Confirm that the warranty, the IP rating and the housing material are specified together, because they jointly determine the service life.
6. Questions to ask the supplier
Ask how long the LED modules, driver and housing are each covered, whether luminous maintenance is defined, how a claim is processed, and whether the warranty applies at the destination voltage and climate. Get the terms in writing before ordering.
Relevant GAOQIAO products
Open these public catalogue pages for representative configurations, then confirm the warranty terms for your exact specification.
- 300 mm (12 inch) LED traffic lightsHigh-flux modules for standard and high-speed intersections.
- 200 mm (8 inch) LED traffic lightsCompact signal heads for urban and pedestrian applications.
- 100 mm (4 inch) LED traffic lightsSmall-format signals for tunnels and special applications.