The initial installation high cost restrict LED street light application

The initial installation high cost restrict LED street light application

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The initial installation cost LED street light is still traditional high-pressure sodium lamp, metal halide lamp of 2 3 times, this is because of the high cost at present, the LED light source, and need to more complex optics, thermal and driving design.

But almost a two years were reviewed, there are already plenty of lamps in the application case LED, its main advantage is: long service life, high efficiency, and whole lamps and lanterns can realize operation state of the overall power saving effect.

LED light source itself efficacy ascension space is large, the characteristics of the semiconductor technology make it shine efficacy (corresponding quantum efficiency) in the existing basis is expected to double in the industry, at present high power LED efficacy of top class level in 100 lm/W, r&d level has more than 130 lm/W can be, the future is expected to more than 200 lm/W level. LED light source has the characteristics of green environmental protection, do not contain mercury and other heavy metals, and more convenient recovery. LED light source system, easy to maintain overall operating low cost, high product quality. Above many merits, makes the LED street light market prospects are widely valued.

In LED lighting applications, the essence belongs to the point light source, so its optical design, including primary lens or reflective device design and two times of optical design is a big application difficulty.

In addition, the LED street lighting system, such as heat scheme based on the metal shell integrate design, fans and the auxiliary heat pipe heat radiator, effective dust (dust will significantly interfere with heat) and so on, these are compared to the traditional pay special attention to the place for street lamp.

In addition, LED by the special driving power, constant current is to ensure the normal work of the foundation, a simple switch power supply scheme often bring LED the damage. The device Therefore, LED the lamp, rely on to further promote the light, heat, electricity in the growing sophistication of overall solutions.

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