In 1938, Iman of General Electric Company of the United States invented a fluorescent lamp that saves electricity. Fluorescent lamps rely on electrons to collide with phosphors to illuminate, and there is no waste of energy consumed in heat generation. The utilization of electric energy is greatly improved compared with incandescent lamps. However, fluorescent lamps contain mercury and lead, which are extremely harmful to the human body and the environment, and still do not meet the needs of sustainable development.
With the continuous advancement of technology, LEDs, which are energy-saving and environmentally friendly, are beginning to enter the field of vision. LED can directly convert electric energy into light. Its appearance solves the problems encountered by incandescent lamps and fluorescent lamps. Its energy utilization rate is higher than that of fluorescent lamps, and it does not produce harmful substances to the environment. It can be said that it is the best lighting in the future. The choice.
At present, China is rapidly eliminating the import and sale of ordinary lighting incandescent lamps. At the same time, energy-saving alternatives represented by LED lighting are gradually favored by large consumers such as retailers, customer service centers and large factories.
Compared with incandescent lamps and fluorescent energy-saving lamps, LED lamps are solid-state light sources, which are more energy-efficient and environmentally friendly, but at a relatively high price. As production costs decrease and production processes progress, the cost of LED lamps is decreasing at a rate of 20% to 30% per year.
The mature fluorescent lamp technology, low energy consumption and long life can be used as a transitional product of traditional energy-saving lamps and LED lamps. It is reported that. The luminous efficacy of LED is about 8 times that of incandescent lamps and 2-4 times that of fluorescent lamps. With the development of science and technology, the light efficiency of LEDs will also continue to increase, and the price will be greatly reduced, plus LED. The existing advantages make it a trend to replace traditional lighting.