What are the advantages and disadvantages of household incandescent lamps, fluorescent lamps, energy-saving lamps, and LED lamps [Lighting factory lighting]

In daily life, we often use many lamps, such as chandeliers, crystal chandeliers, wall lamps, floor lamps, table lamps, downlights, spotlights, etc. In fact, there are many types of light sources for lamps. Taking household lamps as an example, the most common light sources are incandescent lamps, fluorescent lamps, energy-saving lamps, and LED lamps. So, what are the advantages and disadvantages of these common light sources? Below the author lists the working principles, advantages and disadvantages of the four. (Incandescent lamp) Incandescent lamp (commonly known as light bulb): Working principle: Heat is generated when the current passes through the filament (tungsten filament, the melting point reaches multiple degrees Celsius), and the spiral filament continues to gather the heat, making the temperature of the filament above degrees Celsius, and the filament is in When in an incandescent state, it can emit light. When incandescent lamps emit light, a large amount of electrical energy will be converted into heat energy, and only a very small part can be converted into useful light energy. Advantages: small light source, a wide variety of lampshade forms; large versatility, many color varieties, directional, scattering, diffuse and other forms; can be used to enhance the three-dimensional sense of objects, and the color light of incandescent lamps is closest to sunlight color. I think this is also the reason why he has been born for so long and has not been eliminated by the market. Disadvantages: Not environmentally friendly is the biggest disadvantage. When incandescent lamps are used,% of the electric energy is consumed for heating, and only% of the electric energy is really converted into visible light; the heating temperature is high, the heat evaporates quickly, and the life is short (Hours), high infrared component, easily affected by vibration, low color temperature, yellowish. (Fluorescent lamp) Fluorescent lamp (also called fluorescent lamp): Working principle: The fluorescent tube is simply a closed gas discharge tube. The main gas in the tube is argon gas (including neon neon or krypton krypton). The pressure is about .% of the atmosphere. It also contains a few drops of mercury-forming a trace of mercury vapor. Mercury atoms account for about one-thousandth of all gas atoms. The fluorescent tube is based on the mercury atom of the tube, and the ultraviolet light is released by the process of gas discharge (the main wavelength is Angstromu003d×-m). Advantages: energy saving, about% of the electric energy consumed by fluorescent lamps can be converted into ultraviolet light, and other energy can be converted into heat energy. Generally, the efficiency of converting ultraviolet light into visible light is about %. Therefore, the efficiency of fluorescent lamps is about %×%u003d%-about twice that of tungsten filament lamps with the same power. Disadvantages: light decay occurs, and the color rendering of fluorescent lamps is not as good as that of incandescent lamps; the light flickers, which has a certain impact on eyesight; in addition, mercury pollution occurs during the production process and after use and disposal. (Energy-saving lamp) Energy-saving lamp: Working principle (omitted): In essence, it is a reduced version of the fluorescent lamp (this can be understood). Advantages: high luminous efficiency, more than twice that of ordinary incandescent lamps, and obvious energy-saving effect; long life, about twice that of ordinary bulbs; small size and easy to use. Disadvantages: it will produce light decay, low color rendering, incandescent lamps and halogen lamps have good color rendering, and the performance is perfect; energy-saving lamps are mostly in the middle of the color rendering, low color rendering light sources not only look at the color of things not beautiful, but also right Harm to health and eyesight. (LED lights) LED lights (also known as light-emitting diodes): Working principle: It is a solid-state semiconductor device that can directly convert electricity into light (the detailed principle is more complicated, and the characteristics and advantages and disadvantages are emphasized here). Advantages: LED lights have many advantages such as small size, low power consumption, long life, non-toxic and environmental protection, etc., originally used in outdoor decoration, engineering lighting, and now gradually developed into home lighting. Disadvantages: expensive, need constant current drive, poor heat dissipation and easy light decay. The above are the working principles of incandescent lamps, fluorescent lamps, energy-saving lamps, and LED lamps, as well as their respective characteristics, advantages and disadvantages. I hope they can be used as a reference for you when choosing a lamp source. 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