Tunnel light is a light-efficient energy-saving lamp with high light efficiency and long life. It can realize multi-purpose lighting with different reflectors; and it will not cause glare or other uncomfortable reactions after softening treatment. It can optimize the road conditions in the tunnel, improve the visual enjoyment in the tunnel, reduce driver fatigue, and help improve the tunnel capacity and ensure traffic safety. What are the commonly used tunnel lights for tunnel lighting? Mingshida will take you to understand.

1. LED Tunnel Light:

a. High luminous efficiency, high brightness LED light source.

b. The light distribution is scientific and reasonable, meeting the lighting uniformity and anti-glare requirements of each section of the tunnel.

c. Modular design of light source, each module can be installed and disassembled separately, convenient and quick maintenance, reducing a series of costs.

d. The series of products are rich in variety, which can meet the lighting requirements of the four section lights of the lead-in section, transition section, fundamental section and exit section of the tunnel.

2. Electrodeless tunnel lights

Electrodeless lamps are also called electrodeless lamps and induction lamps. It is a lighting device without electrodes and filaments. It generates electromagnetic waves through the magnetic ring outside the lamp tube to excite the substances in the lamp tube to work. For example, the low-pressure gas electrodeless lamp is filled with a mixed gas of mercury vapor and rare gas. After the mercury atoms are ionized and excited, they release ultraviolet rays to irradiate the fluorescent material on the wall of the lamp tube, and the fluorescent material emits visible light. Although also filled with mercury, its solid mercury content is lower than that of fluorescent lamps. Its operating frequency usually reaches millions of hertz, which is much higher than that of ordinary incandescent lamps and energy-saving lamps. Due to the omission of filaments and electrodes, it can be made into various shapes such as rings, spirals or tubes. Its working life can reach nearly 100,000 hours, and its working efficiency is also very high.

3. Sodium lamp tunnel lamp

Sodium lamp refers to a lighting device that uses metallic sodium vapor as a working substance. The lamp tube of the sodium lamp is also filled with mercury and rare gas, but it is sodium vapor that actually works. After sodium is ionized and excited, it will emit yellow light at 589nm, which is directly used for lighting, instead of exciting fluorescent substances to emit white visible light like fluorescent lamps.

a. Low-pressure sodium lamp: The vapor pressure in the arc tube is 0.7-1.5 Pa when it is working, and the light is almost monochromatic, concentrated at 580 nanometers and 589.6 nanometers, the yellow light area that is more sensitive to human eyes, so the luminous frequency is as high as 150 lumens/watt Above, but the color rendering is too poor, it is only used in occasions that do not need to distinguish colors, especially street lighting.

b. High-pressure sodium lamp: increase the vapor pressure of sodium and add a small amount of mercury. The spectral line of the light is wider, so the color rendering is better than that of low-pressure sodium lamp. The main light source of lighting is also used for lighting on stage and other occasions.