With a total length of 55 kilometers, the Hong Kong-Zhuhai-Macao Bridge, one of the "Seven Wonders of the Modern World," was officially illuminated on December 30, 2017. This marked the successful completion of its entire power supply and lighting system, making it fully operational for traffic. Among the many companies involved, Shanghai Sansi Electronic Engineering Co., Ltd. (Shanghai Sansi) has emerged as a key player in the LED industry, showcasing China's technological advancement on a global scale.
The bridge features all LED street lights, tunnel lights, variable information boards, and landscape lights provided exclusively by Shanghai Sansi. This is not just one of the largest projects in China, but also among the most significant globally. The project required advanced lighting solutions that could withstand harsh marine conditions such as salt spray, vibration, extreme temperature fluctuations, and typhoons.
To meet these challenges, Shanghai Sansi worked closely with the project owners, design teams, and contractors. After extensive research, testing, and comparisons, the company developed a range of cutting-edge LED products, including ceramic modular street lights, tunnel lights, variable information boards, landscape lighting, RGB color searchlights, and maintenance bulbs. These products are equipped with intelligent control systems and represent world-leading technology.
Shanghai Sansi’s R&D team, consisting of nearly 500 professionals, customized numerous "black tech" lighting solutions for the bridge. Each product was designed to be durable, energy-efficient, and suitable for the demanding environment of a cross-sea bridge.
One standout product is the **LED ceramic modular street light**, developed under the national “863†project. It uses high-power LED units with independent patents, a unique lens design, and honeycomb convection ceramic heat dissipation. This results in high light efficiency, low light decay, and energy savings of over 50% compared to traditional sources. The lamp is also resistant to corrosion, pressure, and salt fog, making it ideal for long-term use in challenging environments.
Another key product is the **Think LED Tunnel Light**, which utilizes patented reflective illumination technology. It ensures comfortable lighting without glare, meeting specific optical distribution requirements for tunnels. It is known as a "black tech" solution in tunnel lighting.
The **LED Variable Information Board** is another flagship product from Shanghai Sansi. With nearly 20 years of industry leadership, this board has been upgraded with new materials and technologies to resist salt spray, UV radiation, and extreme temperatures. It offers high brightness, strong visibility, and improved reliability, making it a top choice for highway information display.
For the **LED Landscape Lighting**, Shanghai Sansi designed a structure with reduced wind resistance and excellent heat dissipation. The scientific light distribution ensures a longer projection distance and vibrant color-changing effects, making the bridge visually stunning.
Finally, the **LED Maintenance Bulb** uses ceramic heat dissipation technology, ensuring long life, low failure rate, and high reliability. Its soft lighting and impact resistance make it ideal for maintenance work.
Shanghai Sansi has built a strong reputation over 25 years, with more than 2,000 employees and a dedicated R&D team. The company is a leading provider of LED displays, lighting, and smart city solutions. In China, it holds a dominant market share in highway information screens, subway lighting, and tunnel lighting.
Internationally, Shanghai Sansi has made its mark. Over 60% of full-color ultra-high-definition screens in New York’s Times Square come from the company. It has also supplied displays for major events like the 2010 Shanghai World Expo and the Xichang Satellite Launch Center. Additionally, the company has deployed smart street lighting in cities across China, promoting sustainable urban development through the integration of big data, cloud computing, and IoT technologies.
As a leader in innovation, Shanghai Sansi continues to push the boundaries of LED technology, delivering reliable, efficient, and aesthetically pleasing lighting solutions for some of the world’s most complex infrastructure projects.
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