Solar Powered Traffic Signal Light TL Series
Wireless solar traffic signals with independent charging and synchronized control for municipal, EPC and remote-road projects requiring off-grid traffic management.
- 12W signal with wireless synchronization helps reduce grid cabling and roadside trenching
- 6.4V 24Ah LiFePO₄ battery provides 153.6Wh of nominal energy storage
- 9V 7.6W monocrystalline solar panel supports independent solar charging
- 5–7 cloudy/rainy days support preliminary autonomy planning
- −20°C to +80°C operating range supports varied climate planning
12W Wireless Solar Traffic Signal for Off-Grid Road Control
The Sungreat Energy TL Series is a 12W wireless solar traffic signal platform for off-grid solar road-lighting projects where grid connection or inter-pole cabling is difficult. The configuration combines a 12W signal unit, 9V 7.6W monocrystalline solar panel, 6.4V 24Ah LiFePO₄ battery and wireless synchronization between selected signal points. Independent solar supply can reduce the need for roadside trenching, while wireless communication can simplify coordination across separated poles.
Selection should start with the traffic-control function rather than the 12W rating alone. Flashing warnings, temporary work zones and multi-approach intersections may require different signal colours, head quantities, controllers and timing programs. Engineering teams should confirm approach layout, pole spacing, sight distance, seasonal solar conditions, shading, phase sequence and local road-authority requirements.
Battery autonomy and wireless performance should then be checked against the approved operating schedule and site layout before production.
Solar Powered Traffic Signal Light TL Series Technical Specifications & Datasheet
| Model | TL |
| Watts(w) | 12W |
| Lifepo4 Battery | 6.4V 24Ah |
| Solar Panel | 9V 7.6W |
| CCT(K) | 2700-6500K(customized) |
| Charging Time | 6-8 Hours |
| Rainy Days | 5-7 cloudy/ rainy days |
| Work Temperature | -20℃－+80℃ |
| Frequency | 150-250 Time Change |
| Material | Iron+Aluminum+PC+ABS |
| Warranty | 3/5 Years |
Get Your TL 12W Wireless Solar Traffic Signal Project Quote
6.4V 24Ah LiFePO4 Battery | 9V 7.6W Solar Panel | Wireless Synchronization | Less Road Trenching
How TL Series Solar Traffic Signal Lights Are Made | Factory Production Video
Solar Powered Traffic Signal Light TL Series Project & Application Cases
The TL Series can be considered for off-grid road-warning and traffic-control projects where grid access or communication cabling between poles is difficult.
| Reference application | Typical configuration | Main control requirements | Site conditions to confirm |
|---|---|---|---|
| Two-approach roadwork section | Synchronized units manage traffic through one open lane | Phase sequence, clearance time and emergency response | Work-zone length, vehicle speed, gradient, queue clearance and side access |
| Three- or four-approach rural junction | Signal heads and controller grouping matched to each approach | Signal colours, phase sequence and detection inputs | Sight distance, pole spacing, solar conditions, shading and local authority requirements |
| Standalone hazard or warning point | One or two flashing signal heads | Flash pattern, operating schedule and local traffic standard | Lens size, mounting position, visibility distance and maintenance access |
These scenarios illustrate selection logic rather than completed TL installations. For rural-road projects that need roadway illumination rather than signal control, review the FN Series integrated solar street light for rural roads as a separate lighting option. Final configuration depends on the approved traffic plan, controller logic, signal grouping, seasonal solar conditions, reserve-day requirements and road-authority approval.
Solar Powered Traffic Signal Light TL Series Production Process
Configuration Lock & BOM Matching
Production begins with an order-specific BOM review. The signal function, signal colour, head quantity, controller program and wireless grouping are matched with the approved components, including the 12W signal module, 6.4V 24Ah LiFePO₄ battery, 9V 7.6W monocrystalline solar panel, housing parts, brackets and cables. For multi-approach or synchronized orders, units can be identified by signal group or pole position to prevent similar-looking assemblies from being mixed during production.
Electrical & Synchronization Testing
After assembly, technicians check the solar charging path, battery connection, controller output and programmed signal sequence. Synchronized units are paired and operated together to review phase changes, communication response and recovery after a power restart. Lens alignment, connectors, fasteners, seals and external surfaces are also inspected before packing. These checks follow the approved traffic-control logic for the order.
QC Records & Traceable Release
Test duration, sampling ratio and acceptance limits follow the order-specific quality control plan. Results are recorded against the model, signal function and controller grouping, rather than applying an unsupported fixed 72-hour test to every unit. This creates a traceable link between production records and the intersection setup, giving EPC teams clearer information for installation, commissioning and acceptance.
Solar Powered Traffic Signal Light TL Series Overview & Details
The TL Series combines a 12W signal module, 9V 7.6W monocrystalline solar panel, 6.4V 24Ah LiFePO₄ battery and wireless synchronization. The following points should be reviewed before configuration:
| Decision area | What to confirm | Why it matters |
|---|---|---|
| Traffic function | Warning point, roadwork section or multi-approach junction | Determines signal heads, controller grouping and timing logic |
| Energy demand | Signal duty cycle, controller standby use, daily operating schedule and reserve days | Helps verify battery autonomy under actual operating conditions |
| Wireless layout | Pole spacing, line of sight, obstacles and possible interference | Determines whether wireless synchronization requires a site test |
| Mechanical installation | Pole condition, mounting hardware, panel orientation, wind exposure and maintenance access | Confirms the installation scope and long-term service conditions |
For projects that need mains-powered roadway illumination instead of solar traffic control, review the LA Series mains-powered LED street light as a separate lighting product. Its AC-powered architecture is not a direct replacement for the TL solar signal.
Final selection should treat the signal program, energy system, wireless communication and mechanical layout as one project, rather than relying on the 12W rating alone.
Solar Powered Traffic Signal Light TL Series Packaging & Delivery
TL Series packaging treats physical protection and group identification as one part of project delivery. Signal heads, solar panels, LiFePO₄ batteries, controllers, brackets, cables and mounting accessories may look similar but can belong to different approaches or controller groups.
| Package Group | Protection and Identification | Delivery Check |
|---|---|---|
| Signal heads and optical parts | Protect lenses and sun visors from pressure, with the signal colour and head group clearly identified | Match head quantity and signal colour with the approved BOM |
| Solar panels and mounting hardware | Protect panel edges and glass faces with corner protection, while securing brackets and fasteners separately | Check the panel group, bracket set, cable set and mounting accessories |
| Batteries, controllers and cables | Secure batteries and connectors against movement and short-circuit risk during handling | Confirm the battery model, controller group, cable configuration and route-specific documents |
| Multi-unit orders | Label cartons and packing lists by controller group, pole or approach position, signal colour and accessory set | Keep paired wireless units together during unloading and roadside staging |
| Shipping plan | Confirm carton size, pallet arrangement and container quantity after the final product mix and installation plan are approved | Confirm battery marks, documents and state-of-charge preparation for the selected carrier and destination |
Outer labels and packing lists should match the approved order so installers can identify each group without sorting similar-looking parts beside an active road. Lithium-battery markings, transport documents and any applicable certificates are confirmed according to the specific battery, shipping method, carrier and destination route. This approach helps EPC teams receive, check and stage the equipment before installation without relying on generic packing or shipping assumptions.
FAQ of Solar Powered Traffic Signal Light TL Series
The TL Series is a configurable solar traffic-signal platform, not a single fixed warning beacon or a universal complete-intersection package. A standalone hazard point may use one or two flashing signal heads, while temporary roadwork sections and multi-approach junctions require different signal colours, head quantities, controller grouping, phase sequences and fail-safe logic.
Before ordering, confirm the number of approaches, signal heads required for each approach, pedestrian or vehicle detection, countdown requirements and the applicable local road-authority standard. Solar power and wireless synchronization address the system’s power and communication needs, but they do not determine the traffic plan or controller program.
The listed 6.4V 24Ah LiFePO₄ battery provides 153.6Wh of nominal energy:
6.4V × 24Ah = 153.6Wh
Usable energy is lower after discharge limits and electrical losses. Runtime also depends on the flashing or phase duty cycle, controller standby consumption, wireless communication, temperature and the number of active signal heads. Dividing 153.6Wh by the 12W rating alone does not provide a reliable number of operating days.
As a reference, a 9V 7.6W solar panel receiving four peak-sun-hours could generate about 30.4Wh before losses. With an assumed 75% system factor, this is approximately 22.8Wh per day. Final autonomy should be checked against actual daily consumption, the lowest-season solar resource, shading and the required reserve days. The listed 5–7 cloudy/rainy days should therefore be treated as a configuration reference, not an unconditional guarantee.
Wireless synchronization can remove communication cables between selected signal points, but it does not make the installation completely cable-free. Each signal assembly still requires correct connections between the solar panel, battery, controller and signal head.
Wireless performance should be checked against pole separation, line of sight, buildings, moving vehicles, antenna position, radio interference and local frequency requirements. For project evaluation, provide the intersection layout, maximum separation, number of synchronized units, required phase sequence and expected fail-safe response. Where major obstacles are present, an on-site communication test should be considered before final acceptance.
The independent solar supply can reduce the need for grid trenching and communication cables between selected signal points, but it does not automatically eliminate civil work or traffic-management requirements. New installations may still require foundations, anchor bolts, mounting brackets, lifting access and protected work zones.
Existing poles may be reused only after checking their diameter, wall thickness, condition, remaining load capacity, mounting interface and local wind exposure. Whether a lane or road closure is required depends on the pole work, installation equipment, traffic conditions and the approved traffic-management plan. A standalone warning point may be installed with limited disruption, while a new multi-approach junction may still require controlled traffic operations and local authority approval.
Visibility cannot be judged by LED wattage alone. Signal colour, lens size, luminous intensity, optical distribution, viewing angle, mounting height, vehicle approach speed, background contrast, low-angle sunlight, rain, dust and lens contamination can all affect how clearly the signal is seen.
Before acceptance, confirm the required viewing distance and the applicable local traffic-control standard. The selected signal head should be aligned and inspected under representative daytime and nighttime conditions. Keep the lens clean and check the alignment after heavy rain, dust events or other site work. Automatic brightness control should only be stated when it is included in the approved controller configuration.
No. Solar power reduces reliance on grid electricity, but the signal still requires planned inspections and occasional service.
A practical maintenance check should cover:
- Solar panel cleanliness, shading, angle and cable condition
- Battery voltage or capacity trend, terminals and abnormal heat
- Controller status, timing accuracy, synchronization and fail-safe response
- Communication status and any loss of pairing between selected units
- Lens cleanliness, signal alignment and visible output
- Fasteners, seals, corrosion and signs of water ingress
Inspection frequency should reflect dust, rainfall, temperature, traffic vibration and site accessibility. After a dust storm, flood, vehicle impact or communication fault, inspect the affected unit instead of waiting for the next routine visit. Battery replacement should be based on measured capacity and site performance rather than an assumed fixed service life.
Related Products
Related News
The 12th Solar & Storage Live Philippines 2026 successfully wrapped up at the SMX Convention Center in Manila from May […]
Climate change is the definitive challenge of our generation. Reaching a net-zero future is no longer an optional, long-term milestone—it […]
As cities and communities worldwide strive to adopt sustainable and cost-effective infrastructure, solar street lights have emerged as a leading […]
