Energy-saving renovation of campus lighting: "Light" earns no compensation

On April 2nd, all the lamps in the campus of Dalian University of Technology were completely renewed, and the brightness was greatly increased. Is there a sale in the world that does not pay for it? Have! In this "replacement", the school has replaced more than 41,000 lamps, but not only did not spend a penny in the school, it will save a lot of money in one year.

It is understood that all the school replacements are LED energy-saving lamps. These lamps are provided free of charge by the lighting companies. The school does not need to spend extra money. As long as the contracted (5 years) period, the saved electricity costs will be paid out to the enterprise. enough. Last year, the school spent 2.28 million yuan on lighting electricity and 300,000 yuan in lighting maintenance costs, totaling 2.58 million yuan. After switching to LED energy-saving lamps, the annual electricity bill is only about 1 million. The maintenance cost of the lamps can be basically waived within five years. In this way, the annual savings are nearly 1.6 million, and the five-year is 8 million.

The LED is an abbreviation for Light-EmittingDiode. The LED light source is the light source of the light-emitting diode, which is another new revolution of lighting technology since Edison invented the incandescent lamp. LED energy-saving lamps have the advantage that incandescent lamps and other lamps are difficult to match. It has the characteristics of power saving, high luminous efficiency and long life.

The campus green lighting of Dalian University of Technology earned more than just “light”, but also earned savings, environmental protection and health.

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