Advantages and installation precautions of tunnel lights

LED tunnel light is a kind of tunnel light, it is used in tunnels, workshops, large warehouses, venues, metallurgy and all kinds of factory, engineering construction and other places flood light, the most suitable for urban landscape, billboards, building facades for landscaping lighting.
 
>>>> Advantages of LED tunnel lights:
 
LED is a solid semiconductor device, which can directly convert electricity into light. Compared with traditional road tunnel lighting sources (sodium lamp, halide lamp, etc.), LED light source has the following advantages:
 
(1) Small light decay: if the heat dissipation condition is good, the first 10000h of LED is positive light decay, the first 10000h of light decline is 3%-10%, and the first 50000h is basically 30%, which is far lower than the ordinary road lighting source, and the light is more stable.
 
(2) high color rendering: general LED color rendering is about 70 ~ 80, if the use of three primary color phosphor is higher; Generally, the high pressure sodium lamp is 20 ~ 35, and the low pressure sodium lamp is lower. So even though the brightness of the traditional light source is higher than that of the LED, the visual effect is worse than that of the LED. "Not the brightest, but the most clear" should be a direction of the application development of the LED light source.
 
(3) Life: the life of LED is higher than that of general road tunnel lighting source, which is generally higher than 5000H.
 
(4) Price: Although the current price of LED lamp is higher than that of traditional lighting lamps, with the maturity of manufacturing technology, the price of LED lamp is decreasing significantly. Generally, the price of high and low pressure sodium lamp is about 2000 yuan, and the price of cable and other accessories is higher than that of LED cable and other costs.
 
In addition, LED also has the advantages of high maintenance factor, good safety performance, no strobe and energy saving and environmental protection.
 
>>>> Outlook challenges
 
Currently, in tunnel lighting applications, high pressure sodium lamp has been widely used because of its high bright visual effect (up to 120lm/w), but there are still some insurmountable problems in tunnel lighting, mainly due to poor color rendering and limited power selection range of light source (usually only 250W and 400W). Especially in the internal lighting, high pressure sodium lamp has no less power on the one hand, on the other hand, the glare and stabs caused by the strong point-like light source are more serious. In some long tunnels, the straight fluorescent lamp is also used for its high color rendering and better visual inductance of linear lighting. However, the life of the fluorescent lamp is short, usually only about 8,000 hours, so it needs to be replaced frequently, which greatly increases the maintenance cost of the tunnel. In addition, fluorescent lamps are less powerful and cannot be used in areas requiring higher illumination, such as inlet, transition and exit sections. In recent years, with the maturity of the technology of the electrode lamp, because of the elimination of the influence of the electrode factor, the fluorescent lamp compared to the traditional fluorescent lamp has a longer life, but also can achieve greater power, which makes the electrode lamp in the tunnel lighting shows the advantages. However, the luminous surface of the non-electrode lamp is large, and the optical efficiency of the whole lamp is low in the optical design.
 
Although there are still many difficulties and challenges in the large-scale application of LED tunnel lights, such as the imperfect standard of LED lighting products, the negative impact of some inferior products on the market promotion, and the high cost of initial purchase of LED tunnel lights. All this puts pressure on the mass market application of LED tunnel lighting products, but these pressures are inevitable in the initial application of any new technology or product. However, with the further development of high-power white LED technology, the continuous maturity of LED tunnel lighting thermoelectric overall system technology, and the further enhancement of people's awareness of energy saving and environmental protection, LED technology will certainly create a new future of semiconductor lighting industry in the field of tunnel lighting application. Applicable Environment
 
LED tunnel light shell selection of high strength, good toughness alloy environmental protection materials, transparent parts to strengthen toughened glass, dust and waterproof, corrosion resistance and rust. Strong resistance to strong impact and impact; Multi-channel shock-proof structure and high-tech surface spraying treatment, all kinds of short range high strength and high frequency vibration can not affect the lamp, and can work stably in workshop, roadbed, rail and other high frequency vibration and humid, high temperature environment for a long time. Good electromagnetic compatibility, no interference to the transmission network.
 
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Installation Mode
 
LED tunnel light has a variety of installation methods, such as ceiling type, boom type, seat type and wall type, which is easier to operate. Adapt to the lighting needs of different work sites. Lamp and electrical box integrated design, the overall reliability is strong, low failure rate, use and maintenance more safe and convenient. LED tunnel light can adopt intelligent control technology to realize self-dimming control and save energy. Long tunnel lighting is arranged according to the double-hole one-way driving mode. Tunnel lighting is divided into entrance section, transition section 1, 2, 3, basic section and exit section. The functions of lamps are divided into three kinds: intensification lamp, all-day lamp and emergency lamp. Double side lights, the installation height of the lamps is 5.5 meters.
 
Highway tunnel lighting has its own characteristics, which are different from common road lighting. The following points need to be considered in the design:
 
1. The road surface should have a certain brightness level
 
2. The tunnel walls should have a certain level of brightness
 
3. Design speed, traffic volume, route alignment and many other influencing factors
 
4. Comprehensively determine the lighting level from the aspects of driving safety and comfort
 
5. Human visual adaptability, especially in tunnel entrance and exit sections
 
6. The tunnel also needs lighting during the day, and the lighting problem is more complicated than at night.