800*600mm Dual-Color Dual-Position LED Traffic Countdown

Shell Material: Plastic, Die-cast Aluminum, Cold Rolled Steel
Operating Voltage: DC12/24V; AC85-265V 50HZ/60HZ
Operating Temperature: -40℃ to +80℃
LED Quantity: Red 392 pcs, Green 392 pcs

Multiple seals for waterproof, dustproof, lightning protection, surge protection, vibration resistance, low power consumption, and long lifespan
Core circuit uses a microcontroller, with software featuring an "independent clock watchdog" and hardware anti-interference measures.

Intelligent Synchronization and Self-Learning: The core control circuit features an intelligent learning mode that automatically captures the signal cycle of the controller. No manual settings are required to achieve a precise countdown.
Dual "Watchdog" Circuit: The software integrates an "independent clock watchdog," combined with hardware anti-interference measures, ensuring the device does not crash, freeze, or malfunction even in complex electromagnetic environments or with long-term operation.
In-house R&D Control Module: The countdown main control board is produced by our own SMT production line, with strict selection of components to ensure faster logic processing speed and display stability, far exceeding externally assembled products.
Durable Multi-material Shell: Offers options including cold-rolled steel (spray-coated), die-cast aluminum, and plastic, with a multi-seal process to protect against water, dust, and lightning. Easily adapts to varying outdoor environments.
High Brightness and Low Power Consumption: The LED array layout consists of 392 red and 392 green LEDs, providing high brightness and pure colors while maintaining low power consumption, meet energy-saving and environmental protection requirements.
Strong Adaptability: The wide voltage design (AC85-265V / DC12/24V) ensures stable performance in temperatures ranging from -40℃ to +80℃, while the vibration-resistant structural design ensures long-term installation in open areas without damage.

Frequently Asked Questions (FAQ)

Q: How does this countdown timer connect to my existing signal controller?
A: It is a "learning" device that directly connects to the power line of the corresponding color signal light. It automatically detects the signal controller's color change cycle and starts accurately displaying the remaining time when the second cycle begins.

Q: If the signal controller adjusts the timing (e.g., night mode or manual intervention due to sudden congestion), will the countdown get confused?
A: No. The built-in intelligent control chip verifies the timing every cycle. If a change is detected in the signal controller's timing, it will automatically adjust or briefly black out and restart, ensuring that the displayed time is always accurate.

Q: Will the digital display fade or leak light in extremely cold or hot regions?
A: No. We use industrial-grade drive chips and temperature-resistant LED beads, with a working range from -40℃ to +80℃, ensuring that the digits remain clear and coherent without missing segments, even under extreme temperature variations.

Q: What is the practical purpose of the core circuit's "watchdog"?
A: The "watchdog" functions like a 24-hour online technician. When the system experiences lightning or strong electrical interference that causes logic errors, the watchdog instantly forces the system to reset and restart, preventing the countdown from getting stuck on a particular number. This is a core technology ensuring intersection safety.

Q: Do you support customized shell colors or canopy sizes?
A: Yes. As the source factory, we can customize different depths of the canopy (to prevent side light interference) or specific shell colors for coating according to the project specifications.