Streetlights, LED Street Lighting, LED Street Light Fixtures

Although LED streetlights replace sodium lamp can achieve energy saving and emission reduction, compound national policy, more easily wide, but, led, etc. still exist many problems need to be solved and perfect:  The most important is the heat dissipation problem, led working state and thermal design not only directly related to the actual led luminous efficiency, but also related to the actual service life. Especially in high-power led, heat dissipation is a problem that can not be neglected, when the rise exceeds the maximum allowable temperature, led chips will be damaged by overheating. At present, in Taiwan, a light Torch technology company (Light Torch Technology), the use of loop heat pipe (LHP) cooling technology to achieve the work of LED lamp cooling, achieved good results, can reduce the junction temperature of LED lights to 65.  The second is the design of the LED street light distribution, although the comparison in the high-pressure sodium lamp distribution curve need

We have always seen the city roadside street lights are yellow light, which can be used to distinguish the color of the road objects will interfere. The reason is that the lights are used in light is sodium lamp, sodium lamp working principle is to rely on metal sodium vapor glow. In all kinds of traditional electric light, the sodium lamp can not be done with the color rendering of both. For street lamps, the most important thing is to ensure that the object to see, to ensure traffic safety, color discrimination is not so important, the opposite to the car is black or red for the car to avoid pedestrians no difference. Therefore, the use of more light efficiency, longer life of energy efficient LED streetlights , the same electricity consumption can make the lights cover more roads, but also reduce maintenance costs. But this does not mean that color rendering is unimportant. With the advent of LED light source, LED street lights can emit white light, and white lights more efficien

 Its own characteristics-the light of the one-way, without the diffuse light, to ensure illumination efficiency.  LED street light fixtures have a unique two times optical design, the LED street light to the lighting needs of the area to further improve the lighting efficiency in order to achieve energy-saving purposes. LED has reached 110-130lm/w, but also has a lot of development space, the theoretical value of up to 360lm/w. And the high pressure sodium lamp luminous efficiency is increases with the power increase, therefore, the overall light effect LED street lamp is stronger than the high-pressure sodium lamp; (This overall light effect is theoretically, actually more than 250W high pressure sodium lamp's light efficiency is higher than the LED lamp). LED street light color than high pressure sodium lamp, high pressure sodium lamp color index only about 23, and led street color index reached more than 75, from the visual psychological point of view, to achieve the same