Problems in the development of LED road lighting (two)

4, LED light color problem

LED is characterized by high temperature, high brightness, high luminous efficiency. High color temperature is now used 5000K, originally used to 6000K. In fact, color temperature can not be too high, which is related to the law of the natural environment of human life. 6:00-8:00 in the morning, the natural color temperature is about 2000-3000K, belonging to the low color temperature, with the change of time, the color temperature can reach 6000-7000K at noon, the afternoon color temperature and low. Therefore, it was suggested that night should avoid the use of 5000-6000K high color temperature lamp, to follow the laws of nature. Of course, the preference for light temperature varies from person to person, some people prefer white, some people prefer yellow light, different people like different, so this is not stereotyped.

5, LED blue light problem

In order to improve the efficiency of light, LED lamp color temperature is about 5000-6000K, especially blue. It is well known that human eyes are not the same according to age. The age of the eyes of the people is very good light transmission, the eyes of older people with poor light transmittance, poor absorption of blue light, which feel dazzling, blue light when the glare. In the street lamp should also be taken into account, the analysis of the age composition of the driver on the road. In addition, in the last century in 60s to explore the high rate of cancer in textile workers and nurses to do an experiment, the conclusion is that high-intensity light will reduce immune function, increase the risk of cancer. For white light will not affect the health of the people, and now there is no authoritative conclusion, but should also be prepared for a rainy day.

6, LED cost problem

Cost is the biggest problem for enterprises to enter the field of road lighting. Currently, such as road lighting municipal engineering, have begun to use EMC model, that is, to reduce energy costs to pay the full cost of energy-saving projects investment. This model allows users to use future energy savings for plant and equipment upgrades, reduce current operating costs, improve energy efficiency. However, this also means that the one-time investment cost is higher, but the income is relatively long. In addition, street lighting, such as street lighting maintenance costs are very high, compared with the indoor lighting input.

7, LED product sales problems

Sales, that is how to get the project. Road lighting is mainly municipal engineering, for a single project, the customer needs are different, therefore, the enterprise also needs to have the following cut into municipal engineering conditions:

First, the basic qualification of enterprises, including the national green certification indicators, the company's basic business license, etc.;

Two enterprises need to have production, construction qualification, such as by the national unified outdoor lighting and road lighting construction related qualifications;

Three is the enterprise to establish relationships with the local purchase price, net list, get qualified for the;

Four is in the local network.