At present, high power LED except in automotive lighting, lighting lamps and lanterns, LCD backlighting, LED lamps contour attachment value products applied in, and can get quite the profit. However, with the average traffic lights and old over the immature led lights replace time arrival, new GaoLiangSan color led traffic light to the popularization and application of the widely. In fact, a set of perfect function, quality high LED traffic light price is very expensive, but due to traffic light the important role in urban transportation, every year there are a lot of traffic lights needs to update, then draw out a bigger market, after all, highly profitable but also to the production and design company LED to the whole LED industry development, it also can produce benign stimulation.

Transportation field application LED products mainly include red, green, yellow signal instructions, digital timer display, arrow, etc. Product requirements of high strength ambient light during the day, bright, night to reduce brightness, avoid dazzling some. LED traffic signal lamp illuminant command by multiple LED to light when the design, to consider more focus, and the installation of leds also has certain requirements, if not installed consistent will affect the uniformity of luminous efficiency in design, thus to consider how to avoid the emergence of such defects, if optical design is too simple, lights light distribution are mostly from the perspective of LED itself to ensure, then the distribution of light to LED itself requirements and installation requirements are strictly, otherwise this phenomenon will obviously.

LED traffic lights in the match with other light signal (such as car's headlamp, etc.) also have some differences, though a light intensity distribution as the requirements. And in light automobile lamps stricter requirements deadline online. The design of automobile lamps if enough light configuration to the corresponding place, without thinking about where the light, designers can send by small regional points to points of light distribution area design lens, but the traffic lights still need to attend to the entire surface of the uniformity of the luminous efficiency, it must meet any work from lights use regional observed signals shiny surface, signal to the design are clear, the visual effect must be evenly. Although incandescent lamp and marinated tungsten light source lights glowing stability, even, but exist high energy consumption, low, easy generation life visions signals, and color piece unfast wait for blemish. If can reduce LED lamp phenomena, reduce death light failure so high brightness, low energy consumption application in LED lights, absolutely will give light product brings the revolutionary change.

The application of traffic in LED mainly in the following aspects:

One, the traffic lights. The LED lights with its high brightness, high reliability and low cost etc, long life, get the favour of city traffic management department.

Second, highway traffic guidance system. With the improvement of highway construction level, LED traffic guidance system has become standard configuration products, market demand is big.

Third, the urban road traffic induction, marks. As the major cities of traffic congestion increasingly serious, road traffic induction LED display in different cities are rapidly growing.

Application of advantages in LED lights are as follows:

1, monochromatic, has the divergence Angle

Leds, and a light is monochromatic color piece does not need to produce red, yellow and green signal colours; Leds directional light emitted, and a certain degree of divergence Angle, which can abandon traditional lights used in the spherical reflector. LED this characteristic solves the existing traditional lights the fantasies (known as false show) and color piece fade and to improve efficacy.

2, cold light, low energy consumption

In LED light energy advantage is very obvious, its significant is one of the features low energy consumption, the application of the lamps and lanterns is a very meaningful.

3, good reliability, long life

Lights working environment is relatively poor, cold summer, weathered the reliability of lamps and lanterns, so for the demand is higher. General with the incandescent bulb signal low life expectancy is 1000h, tungsten halogen halogen life expectancy is 2000h, which produces high maintenance fees. In be used actually, there have been many LED traffic lights use time more than five years and no damage LED. And a larger advantage is such as tungsten halogen halogen response time is fast, thus reducing pay accidents.

LED traffic lights etc solve some problems:

1, high power LED application, the advantage is sharply reduce the number of LED, but need to solve the problem is heat and cost.

2, although LED traffic lights of luminous intensity index, electrical indices and emc requirements, but in gradually raise the optical design, LED lights, circuit design still need further optimization design, can become the mainstream of the traffic lights.

3, with energy saving and environmental requirements increase, combined with solar LED lights will be popular, but need to solve the traffic signal controller with problems.

In short, LED in the traffic lights on the application of developing very fast, its application in traffic, and the market prospect is also very good basic alternatives to traditional illuminant. Although traffic signal products on the market already close to capacity, but because the LED itself has the environmental protection, energy saving, long life in traffic advantages, LED the application of still have very large space.

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