The two poles of the energy-saving lamp are ordinary tungsten wire and tungsten wire. After heating, the electrons can be emitted, and a relatively high voltage is applied to both sides of the lamp to form an electric field. These electrons are accelerated in the lamp tube to form The electron flow of a certain speed and energy, the lamp is vacuumed, and it is filled with mercury, that is, the electrons in the mercury electron flow hit the mercury atom at a certain speed, so that the mercury atom is excited and becomes the excited state. The ion, called the step, causes the mercury in the excited state to spontaneously fall back to its original state after a short period of time. At the same time, ultraviolet light is released, and ultraviolet light cannot be used for illumination.
The common energy-saving lamps have general ordinary lamps and three-primary lamps that are gradually becoming mainstream, and have the advantages of saving electricity compared with incandescent bulbs. The difference is that the color rendering of ordinary lamps is low, while the lamps of the three primary colors show a natural sunlight color, and the color rendering and light efficiency are better than ordinary ordinary lamps. Energy-saving light sources contain mercury. Since the boiling point of mercury is very low, it can be evaporated at normal temperature. Immediately after the broken fluorescent tube is broken, mercury vapor is emitted to the surroundings, and the concentration of mercury in the surrounding air can be instantaneously 10 to 20 mg per cubic meter. The maximum allowable concentration in air is 0.01 mg per cubic meter. Mercury is difficult to remove after entering the human body.
1. There is mercury pollution in the production process and after use. At present, Western countries pay considerable attention to mercury pollution.
2, because it is a glass product, easy to break, not good transportation. Not easy to install.
3, its power consumption is still a bit too big.
4, easy to damage, short life, energy saving does not save money, this sentence is its best portrayal.
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