In recent years, ED lighting industry has entered a mature stage, LED manufacturers not only in price competition, profits gradually smaller, also expanded in the late development of application of LED lights, LED street lamp on the quality level of the gap is large, low level repeated construction products no technical content, then, LED solar street lamp which exist? Solar street lamp manufacturers to solve some of the methods, small series will be simple to say.

1 high prices

The LED lamp cost is far higher than high pressure sodium lamp, a LED street price in 3000~5000 yuan, or even higher, and a set of imported brands (including high pressure sodium lamp, electric light source) price is not more than 1500 yuan. As for the present situation, LED street was too expensive, the price is 2~5 times that of high pressure sodium lamp. So even if the power consumption of LED lamp is only 1/2 HPS, but because the price is much higher than that of high pressure sodium lamp, LED street lamp instead of high pressure sodium lamp cost recovery cycle will still be very long.

So, LED street lamp manufacturers to be officially promoted in the road lighting market, prices and costs are still the biggest obstacle. In order to make the LED lamp down to the competitive price of the existing lamps, the cost of each manufacturer needs to be reduced. And in the near future can only be in the LED technology continues to mature, the luminous efficiency under the premise of continuous improvement, through the LED life advantages, energy-saving advantages to make up for the disadvantages of the price.

2 domestic light source can not meet the market demand

The development of LED light source in China is relatively late, and the technical level is still a certain distance from the international leader. At present, the luminous efficiency of CREE, OSRAM and other imported light Nichia, generally more than 100lm/W. Although China has vigorously investment for development of LED light source technology, the technology level is rising, but still light effect from 30lm/W to 60lm/W to the development of 100lm/W, both from the "quality" and "quantity", the domestic LED light source can not meet the market demand.

Domestic LED light source at room temperature in the state of PN junction work, although the theory of life can reach 100 thousand hours, but because of the heat problem cannot be solved completely and effectively, so that the actual life is greatly reduced, LED lights light (life) problems have become one of the key questions are widely used in street lamps. The service life of the LED street lamp using no experience, many domestic manufacturers use LED light source known as the life span can reach 5~6 million hours, but no actual use of data or laboratory test data to support, in the actual application process, some manufacturers of the products due to decay within a short period of time, there was a lot of "dead lights" phenomenon. Causing serious harm to the reputation of LED street.

3 lack of power system stability

LED driver power supply instability is the industry consensus, in fact, it is in the LED lighting industry hind legs, because the driver is an important part of LED street lights, and its failure will lead to the failure of the whole lamp. Due to the harsh environment of the outdoor work, in which the power supply part of the life of the components of the power supply and even the life of the entire street lamp bottleneck.

Due to poor reliability of power installed street lights are likely in a short period of time will be bad, the height of LED lights for this outdoor device, difficult installation, maintenance more difficult, for LED manufacturers, power supply instability makes the rising cost of maintenance. Therefore, high power LED street lamp driver power quality is not a great power to cross the road to the development of the short board LED.

Source: http://www.zsntled.com/