As the Earth’s resources become increasingly scarce, increasingly based on investment costs of energy rising, and a variety of safety and pollution problems can be described as ubiquitous. Solar energy as an “inexhaustible” security, environmental protection and new energy sources more and more attention. Thus, solar lighting products with the popularity of solar water heaters after the students should, however, where we use solar lighting and electricity for lighting effects and practical contrast.
Compare one city to install electric lighting complex: in the city lighting project has a complex operating procedures, the first laying of cables; cable channel will be carried out here, excavation, laying of underground pipe, pipe threading, backfill and other large infrastructure projects.
Then a long period of installation and commissioning, if any of the lines in question, will have to rework large areas. Easy to install solar lights: solar lighting installation, without the laying of a complex line, just does a cement base, and then you can use stainless steel screws.
Contrast the three cities have electric lighting security risks: market power due to the construction quality of lighting, landscape renovation project, materials aging, power supply not normal, water and electricity pipes and other aspects of the conflict brought a lot of security risks. No safety hazards of solar lighting: solar lighting is super low-voltage products, safe and reliable operation.
Other advantages of solar lighting:
Green, high ecological community for the development and promotion of the addition of new selling point; sustainable reduction of property management costs and reduce the cost of some of the owners of public sharing. Described in the foregoing comparison,solar lighting, no safety problems, no energy consumption, environmental protection, ease of installation, maintenance and other automatic control for the inherent characteristics of real estate sales, construction of public works can be used directly to bring significant advantages.
Solar street light consists of the following components: solar cells, batteries, solar street lighting special controller, light and lamp.
Solar lights are the work of an automatic control system, simply set the operating mode of the system will automatically work. Solar street lamp is ideal for road lighting, along with the improvement of people’s lives and society continues to develop, it will be widely used, so that the bright sun, the earth has given to mankind in the night lighting.
Solar lamp life than the average life of the lamp power is much higher, the main components such as solar lamps solar modules —- 25 years of life; low pressure sodium lamp, the average life of 18,000 hours; low efficiency energy-saving lamps of three primary colors average life expectancy of 6000 hours; super bright LED’s average life expectancy of more than 50,000 hours or more; solar energy battery life 38AH the following 2-5 years; 38-150AH of 3-7 years. According to the local Price Bureau in accordance with conventional plot, “according to a one-time net charge of residential floor area of residential street lights maintenance costs 6 yuan / ?” requirement, making the initial investment to be higher than ordinary lamps solar lamps a lot of initial investment. China’s vast territory, has a very rich solar energy resources. It is estimated that each year China’s land surface solar radiation is about 50×1018kJ, solar radiation throughout the country reached a total of 335 ~ 837kJ/cm2 • a, the value of 586kJ/cm2 • a. Solar radiation from the country’s total distribution, Tibet, Qinghai, Xinjiang, Inner Mongolia south, Shanxi, northern Shaanxi, Hebei, Shandong, Liaoning, western Jilin, Yunnan, central and southwest, southeast of Guangdong, Fujian, southeast of Hainan Island east and west and southwest of Taiwan Province and other large areas of a large amount of solar radiation. Especially in the largest Tibetan Plateau, where the average altitude of 4000m or more, thin atmosphere, clean, transparent, low latitude, sunshine time is long.For example, known as the “Solar City” of Lhasa City, 1961-1970, on average, the annual average sunshine time is 3005.7h, 68% relative sunshine, the annual average of 108.5 sunny days, cloudy days was 98.8 days, years mean cloud amount of 4.8, solar lighting is 816kJ/cm2 • a, than the other provinces and the country with the high latitude regions. Sichuan and Guizhou provinces, the country’s lowest total solar radiation, particularly in the Sichuan Basin are the most, where rain and more fog, less sunny. For example, known as “fog,” said the Chengdu, the annual average sunshine time is only 1152.2h, 26% relative sunshine, the annual average of 24.7 sunny days, cloudy days up to 244.6 days, the annual mean cloud amount of up to 8.4.
