The Liaoyang Road Expressway Tunnel is about 1.2 kilometers long, with six lanes in both directions, a clear height of 6.26 meters, and a design speed of 60 kilometers per hour. It is not only the first urban expressway combining tunnel and viaduct in Qingdao, but also the first expressway connecting expressways in series, effectively alleviating the traffic pressure on Qianhai Line 1 and the southern Jiaoning viaduct. During off-peak hours, the driving time is shortened from the original average of 40 minutes to about 15 minutes, greatly improving traffic efficiency.

Facing this key project, Donlim Power's star product - Two-way dual-color temperature + three-in-one dimming and color-adjusting power supply MAS-C series, provides a strong guarantee for the road lighting of Liaoyang Road Expressway Tunnel. This series of products supports dual-channel complementary output function, and supports smooth adjustment of color temperature and brightness, which can meet the needs of lighting in different environments. Compared with the traditional power supply color adjustment, the MAS-C dual color temperature power supply series of Dongling Power Supply only needs one power supply to easily realize the color adjustment function, which greatly simplifies the system structure and improves the reliability of the system.

In addition, the MAS-C series also adopts a negative logic dimming design dedicated to tunnels. In the case of bus fault (such as when the dimming line is short-circuited or disconnected), the lamp can maintain maximum brightness to ensure driving safety. This design ensures the special environment and safety requirements in the tunnel, providing drivers with a safer and more comfortable driving experience.

Dongli Power has always been committed to providing efficient and reliable lighting solutions for urban infrastructure construction. The lighting power products provided for the Liaoyang Road Expressway Tunnel in Qingdao this time ensure the safety needs of road lighting and contribute to the construction of smart cities. In the future, Dongli Power will continue to use innovation as the driving force and quality as the guarantee to provide more high-quality products and services for global urban infrastructure construction, promote the development of smart cities, and light up the future of more cities.