The 137th China Import and Export Commodities Fair (Canton Fair), the premier global trade event, will be held in Guangzhou from April 15-19, 2025, providing an unparalleled showcase of innovative technology and sustainable solutions. In the field of sustainable infrastructure, SRESKY is proud to present its Delta S Split Solar Street Light series (SSL-86S to SSL-815S), which will be showcased at Booths 16.4A01-02, 16.4B21-22. The Delta S is more than just a solar streetlight—it is redefining the B2B market by integrating a series of cutting-edge smart features. From adjustable solar panels to environmental adaptive technology, Delta S represents the pinnacle of solar lighting technology, providing contractors, distributors, and project developers worldwide with an efficient, reliable, and easy-to-manage solution.
Beyond the Basics: The Evolution of the Intelligent Split Solar Streetlight
Split solar streetlights are favored for their design flexibility. Unlike one-piece streetlights, the split design allows the solar panels to be installed separately from the luminaire, optimizing the orientation and angle of the panels to capture more sunlight. This flexibility is particularly suitable for areas where solar energy absorption needs to be maximized, such as remote locations or environments with poor lighting conditions. However, with the rapid advancement of smart technologies, physical flexibility alone is no longer enough to meet the needs of the modern market.
The definition of a “smart” streetlight has evolved from a simple light-controlled switch (on at dusk, off at dawn) to a complex ecosystem encompassing the following core elements:
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Energy Optimization: Maximizing energy utilization through efficient solar energy harvesting and intelligent power management.
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User Interactivity: Providing an intuitive operator interface and remote control capabilities to simplify management and maintenance.
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Environmental Adaptability: Dynamically adjusting lighting parameters according to weather, light, or usage scenarios.
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Ease of Maintenance: Reducing operating costs and the need for on-site intervention through real-time monitoring and troubleshooting.
The SRESKY Delta S series is the culmination of this evolution. It not only inherits the flexibility of a split streetlight but also redefines “smart lighting” through cutting-edge technology, offering unrivaled performance and value to B2B customers worldwide.
SRESKY Delta S: The Fusion of Intelligence and Efficiency
The SRESKY Delta S series was designed to seamlessly combine advanced technology with reliability and efficiency to create a truly future-proof solar streetlight. Here’s how the Delta S redefines the industry standard for smart split streetlights through five key innovations:
1. Maximizing Energy Efficiency: Adjustable Solar Panels
One of the core strengths of the Delta S is its adjustable solar panel mount, which allows installers to precisely angle the panels according to geographic location, seasonal variations, and site conditions. This design ensures that the panels are always optimally perpendicular to the sun’s rays, maximizing solar absorption and charging efficiency. For example:
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In areas near the equator (e.g., Manila, Philippines, latitude 14°N), where the sun’s altitude angle approaches 90° in summer, the panels can be adjusted to be nearly horizontal to capture direct light.
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At high latitudes (e.g., Hobart, Tasmania, Australia, latitude 43°S), where the solar altitude angle is as low as 20°-25° in winter, the panels can be adjusted to a steeper angle to optimize low-angle light absorption.
The Delta S is equipped with high-efficiency monocrystalline silicon solar panels ranging from 81W (SSL-86S) to 154W (SSL-812S/SSL-815S) at 22.8V or 22V. Monocrystalline silicon is known for its high conversion efficiency (up to 20% or more) and excellent low-light performance. Combined with an adjustable mount, Delta S can harvest 20-30% more energy than a fixed panel under the same light conditions.
Additionally, Delta S integrates the ALS2.4 Adaptive Lighting System, which dynamically adjusts brightness according to ambient light and battery levels. Even on rainy days, the system optimizes energy distribution and extends lighting time to ensure all-day reliability.
2. Unprecedented Information Transparency: Large Intelligent LED Display
Another groundbreaking feature of the Delta S is its extra-large Intelligent LED Display, which provides users with unprecedented information transparency. This intuitive interface displays key operating data in real time, including:
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Battery Capacity Remaining: Displays a percentage (0-100%) to help users get an accurate picture of power status.
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Current Lighting Mode: Displays the current operating mode (e.g., M1, M2, M3), allowing users to verify that the settings meet their needs.
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Sensor Status: Monitors the working status of the PIR motion sensor, ALS light sensor, and rain sensor.
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Fault Codes: Displays specific fault codes when the system detects a problem for quick diagnosis and repair.
This transparency greatly simplifies operations and maintenance, especially for contractors and municipalities managing large-scale streetlight networks, as the LED displays provide instant insights, reducing the frequency and complexity of on-site inspections.
3. Intelligent Environmental Adaptation: Dual Rain Sensors and Automatic Color Temperature Switching
The Delta S‘s dual rain sensors represent a significant advancement in environmental adaptation technology. On dry nights, streetlights are illuminated with 5700K cold white light, providing clear, bright illumination. When the sensor detects rainfall, the system automatically switches to 3000K warm white light. Warm white light is more penetrating in rain and fog, significantly improving visibility and enhancing safety for pedestrians and drivers.
This feature is particularly suitable for rainy areas, such as coastal cities in Malaysia or Vietnam, where frequent rainfall may affect the lighting effect. Color temperature switching not only improves functionality but also optimizes energy usage and extends battery life through dynamic adjustment.
4. Advanced Battery Management and Protection: BMS Technology
The Delta S integrates an advanced Battery Management System (BMS) that provides comprehensive protection for the battery pack, including:
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Protection against overcharge, overdischarge, overcurrent, and short circuit.
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Over-temperature protection to ensure safe operation in extreme weather conditions.
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Battery equalization to optimize the performance of each cell in the battery pack and extend overall life.
BMS technology ensures efficient operation in a variety of environments, such as the high temperatures of the Philippines or the low temperatures of southern Australia, while significantly extending battery life and reducing replacement frequency and maintenance costs. This reliability is especially important for remote locations or budget-sensitive projects.
5. Convenient Control and Maintenance: Remote and Local Setup and Troubleshooting
The Delta S offers flexible control options, allowing users to easily adjust lighting modes (such as timed, sensed, or hybrid modes) using either physical buttons or the Super Remote. The Super Remote Control supports remote operation, making it ideal for managing decentralized streetlight networks.
What’s more, the Delta S‘s fault code reading feature greatly simplifies maintenance. When a problem occurs in the system, the LED display shows a specific fault code that can be used by maintenance personnel to quickly pinpoint the problem (e.g., a faulty battery connection or sensor failure) without the need for complex testing. This efficient diagnostic capability significantly reduces maintenance time and costs, especially in large projects.
Core Value Proposition for B2B Customers
B2B customers looking for next-generation lighting solutions at the Spring 2025 Canton Fair (Booths 16.4A01-02, 16.4B21-22) will find that the SRESKY Delta S offers a unique set of business benefits that perfectly fit the needs of contractors, distributors, and project developers.
Lower Total Cost of Ownership
The Delta S‘s high-efficiency solar panels, ALS2.4 technology, and BMS system combine to improve energy efficiency and battery life, reducing energy consumption and replacement needs. Intelligent LED displays and fault code capabilities further reduce maintenance complexity and minimize the cost of field intervention. Together, these features ensure a lower Total Cost of Ownership (TCO), providing a cost-effective solution for budget-sensitive government projects or commercial developments.
Enhance Project Reliability and Safety
The Delta S‘s environmental adaptive features, such as rain sensors and color temperature switching, ensure reliable lighting in all weather conditions. For example, during the rainy season in Mexico or monsoon rains in Malaysia, the automatic switching of warm white light significantly improves visibility and safety. In addition, monocrystalline silicon panels and BMS technology ensure stable operation of the streetlights even in low light or extreme temperatures, making them ideal for remote areas or critical infrastructure projects.
Easy to Manage and Deploy
Smart LED displays provide real-time operational data, simplifying the monitoring and management of large-scale streetlight networks. Flexible control options (local push-button and remote control) make installation and tuning easier for multinational projects or multi-site deployments, and Delta S‘s global adaptability (with adjustable panels for different latitudes and climates) further reduces the complexity of inventory management, so customers have one product to meet a wide range of needs.
Investing in Future-Proof Technology
Choosing Delta S means investing in cutting-edge technology. Whether it’s smart sensors, BMS technology, or informative displays, every Delta S innovation is designed to meet the future needs of smart cities and sustainable development. Attendees at the Canton Fair can experience a hands-on demonstration of these features, including a real-time demonstration of rain sensing and intelligent brightness switching, by visiting the SRESKY booth (16.4A01-02, 16.4B21-22).
Experience the Future of Smart Lighting at the Canton Fair
The SRESKY Delta S Split Solar Street Light is more than just a product upgrade; it represents a new era of smart solar lighting. By combining adjustable high-efficiency solar panels, an informative smart LED display, environmental adaptive technology, and advanced system management, the Delta S offers B2B customers unrivaled performance, reliability, and ease of use.
At Canton Fair 2025 (April 15-19, Booths 16.4A01-02, 16.4B21-22), SRESKY invites customers from around the world to discover how Delta S is driving sustainable infrastructure through smart innovation. This is not only a product demonstration but also an expression of SRESKY‘s commitment to “Innovating for a Solar Future.”