specifications of led and led street light

In recent years,  a lot of suppliers in Taiwan and the mainland China are planning also a lot of LED demonstration road works case, for the LED lights industry into the power of technology to continue to grow.

2008 LED street lights 45Lm / W luminous efficiency, and progress to the end of 2009 the factory is now published 80Lm / W luminous efficiency of the lighting standards Regardless of 80lm / W luminous efficiency product quality, whether it can be notice by the end of 2008 the CNS15233 the standard specifications, but also because of the timely support of the Governments of expanding domestic demand, the luminous efficiency of LED lamp products in advanced from all walks of life, fought to enter theLED street light industry, which makes the R & D capabilities, significant progress, I believe in In the near future, the luminous efficiency of LED street lights can progress to completely replace the traditional form of the existing high pressure sodium street light.

All LED lamp products in the design of cooling the processor, generally can be summarized in the aluminum extrusion heat processor, fin-type heat processor and the heat pipe combination of heat processor, in which the aluminum heat processors are mostly processor exposed lighting appearance, this approach has the advantage in the cost of cooling the processor can be relatively cheap, especially mold development costs more competitive, but during the product development of high-wattage, weight is a must pay attention to factors, because the public regulation of the poles on the tolerance of the stress there will be certain restrictions, but also in the high-wattage products generally are using fin type radiator, or the way of the application of heat pipe design thermal treatment plant.

In addition to the heat processor R & D LED lamp structure is another important role is the power supply, because the prevailing LED products for a DC-driven light, and therefore on the manufacturers of the power supply must be customized based the development of a dedicated power supply for various styles of LED lamp products, but also have differences in accordance with national product safety norms for the adjustment of the circuit, to comply with the specification of the safety of the product re-sold throughout the world. We have the experience of the three places the case of LED street lamp project in recent years, LED lights dead lights phenomenon accounted for most of the ratio are caused by the instability of the power supply, power supply stability, will also affect the LED lights on the outdoor use, is it possible to maintain good light decay control within three years.

Secondly, the LED lights in the product development important technical threshold capacity of optical design, good lighting with light features, allows the LED street light evenly distributed in the way of the illuminated surface, Taiwan's the NS15233 standard specification, only for street lights in a vertical 80-degree angle and 90 degree angle should be less than 30 and 10 of the glare quality requirements. On level 65 ~ 95 degree angle is greater than the specific brightness limit, the rest of the lighting technology, optical design capacity of each product, because some of the engineering case will require the road surface illuminance level limit, then a good optical design can make the light efficiency is slightly worse LED lamp products, the actual level of illuminance of the road surface was good.

Conditions of quality and reliability problems, the LED street lamp Competition to see the rest of the soft lighting to show performance, existing LED lamp products, most of them have adopted the German company OSRAM for street products, bat wings wide-angle two to light distribution design, optical design, each vendor has its own know-how and do not necessarily accept, you can still continue to try to make the street lights road lighting more to improve the efficiency.