Introduction and Functional Analysis of LED Tunnel Lights

LED Tunnel Light is a type of tunnel light that is used for large-area flood lighting in tunnels, workshops, large warehouses, venues, metallurgy, and various factory areas, engineering construction sites, etc. It is most suitable for urban landscapes, billboards, and building facades for beautification lighting.

LED Tunnel Light's Energy-Saving Advantages

Energy-saving involves requirements for light sources, lamps, and lighting methods, LED Tunnel Light energy-saving includes lighting design energy-saving and management energy-saving, among which lighting design energy-saving is the most important measure. It includes adopting novel and reliable design concepts and reasonable standard values, as well as using efficient light sources, efficient lamps, increasing light reflectance ratio, and lighting control energy-saving, etc. LED compared to traditional light sources, has the greatest advantages of energy saving and stability. Therefore, based on LED's advantages and characteristics, improving LED chip efficiency and rational light distribution design to enhance the overall efficiency of lamps is a key issue that needs to be addressed in current LED tunnel lighting.

LED light source efficiency is a basic indicator for measuring the efficiency of tunnel light sources. According to the requirements of LED Tunnel Light in practical applications, its light efficiency must reach a certain level to meet the needs of replacing traditional road lighting sources such as sodium lamps and metal halide lamps.

In recent years, with the continuous development and updates of LED chips, packaging, and lamp light distribution technology, the efficiency of LED light sources has reached new heights. For example, the HPWINNER LED tunnel light, using high-quality chips, reasonable light distribution, and structural design, has an average light efficiency far higher than the current LED tunnel light products.

LED Tunnel Light's Multi-Section Lighting Function

Tunnel lighting is generally divided into five sections: the approach section, the entrance section, the transition section, the middle section, and the exit section, among which LED Tunnel Light has different functions in each section:

Approach section

The approach section of the tunnel refers to the section of the road approaching the tunnel entrance. The starting point of the approach section is an illumination stopping sight distance from the entrance. The stopping sight distance is based on the highway tunnel lighting design specifications. It should be noted that the approach section is outside the tunnel, and its brightness comes from natural conditions outside the tunnel, so artificial lighting is not required. However, because the brightness of the approach section is closely related to the lighting inside the tunnel, it is customarily considered a lighting section.

Entrance section

The entrance section is the first lighting section after entering the tunnel, previously referred to as the adaptation section. This section requires artificial lighting.

Transition section

The transition section is the lighting section between the entrance section and the middle section. This section is used to solve the visual adaptation issue for drivers from the high brightness of the entrance section to the low brightness of the middle section.

Middle section

After passing through the entrance and transition sections, the driver's vision has completed the dark adaptation process. The task of the middle section lighting is to ensure the safety and stability inside the tunnel.

Exit section

During the day, the LED Tunnel Light allows drivers to gradually adapt to the strong light at the exit and eliminate the "white hole" phenomenon. At night, it allows drivers to see the external road's layout and obstacles, eliminating the "black hole" phenomenon at the exit. Common practice is to use street lights outside as continuous lighting.

During the day, the brightness of the tunnel exit section should be higher than the basic brightness value inside the tunnel; at night, it should be the opposite, lower than the basic brightness value inside the tunnel. When there are street lights outside the tunnel, the road surface brightness inside the tunnel should not be less than twice the brightness of the open-air brightness.

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