Does light earn? Campus replacement LED lights are nearly 8 million in 5 years

The central wide net news, the world has the light to earn not to compensate for the sale? Yes! Recently, all the lights in the campus of the Dalian University of industry are completely new, and the brightness of the university has increased greatly. This "replacement", the whole school has a total of more than 41000 lamps and tubes, not only do not spend a penny of the school, a year down will save a lot of money.

According to Liu Zhenguo, director general of the general affairs office of Dalian Industrial University, the school is replaced by LED energy saving lamps. These lamps are provided free of charge by the lamps and lanterns, and the school does not need extra money. As long as in the contract period (5 years), it will be enough to pay a portion of the savings to the enterprises every year. He gave an account: the school's electricity bill was 2 million 280 thousand yuan last year, and the maintenance fee of the lamps and lanterns was 300 thousand yuan, and the total cost was 2 million 580 thousand yuan. After changing into LED energy saving lamp, the electricity bill of one year is only about 1 million, and the maintenance fee of lamps and lanterns can be eliminated in five years. In this way, the savings of one year is nearly 1 million 600 thousand, and 5 years is 8 million.

What is the energy saving effect of LED energy saving lamp? Professor Zou Nianyu, director of the Institute of photonics research at Dalian Industrial University, also calculated another account: LED is the abbreviation of Light-Emitting Diode. The LED light source is the light source of the light emitting diode. It is another new revolution of lighting technology since Edison invented the incandescent lamp.

LED energy-saving lamps have the advantages of incandescent lamps and other lamps and lanterns that are difficult to compare with the shoulder: longer life. The ordinary incandescent lamp has a life of only one thousand hours, and the ordinary energy saving lamp is only eight thousand hours. The LED lamp, which is used normally, has a life span of fifty thousand hours. This greatly reduces the maintenance cost of the lamps and lanterns, and avoids the suffering of regular replacement. Electricity is more economical. LED light consumption is very low, in the same lighting effect, the use of 45 watts of ordinary fluorescent lighting effect is only equivalent to 15 watts of LED light source. The light efficiency is higher. In the lighting industry, the luminance is used to describe the amount of light radiated to the light. The incandescent light is about 20 lumens / watts, the fluorescent lamp is 60 lumens / watts, and the LED lighting can reach 120 lumens / watts and will continue to improve as the technology progresses. Better light color controllability. The light color and brightness of the LED are variable and can be regulated according to the actual needs so that the light environment can change with the needs. The safety factor is higher. LED light is a cold light source, no heat, the use of DC, small voltage, small risk, safety factor is higher. It's greener. LED lamps without harmful metal mercury, non-toxic, no infrared and ultraviolet radiation, no electromagnetic interference, shock resistance, impact resistance, not easy to break, can be recycled and reused. It is better for health lighting. After reasonable circuit design and optical design, LED lamps and lanterns can not flicker, flicker, light and softer, help to protect vision, make life and learning environment more comfortable and healthy. The campus green lighting of Dalian Industrial University earned not only "light", but also economy, environmental protection and health.

For more information on LED, click on the Chinese LED network or pay attention to the WeChat public account (cnledw2013).