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The advantages and disadvantages of incandescent lamp, fluorescent lamp, energy-saving lamps and LED lights and distinction

by:Longjian     2020-10-18
Incandescent bulb also known as electric light bulb, it is the working principle of electric current through the filament ( Tungsten wire, the melting point is more than 3000 degrees Celsius) To generate heat, spiral filament will heat accumulation unceasingly, makes the filament temperature above 2000 degrees Celsius, the filament in is in a state of incandescent, like burning red iron can shine, shine forth. The higher the temperature of the filament, the brighter the light, so called incandescent lamp. Incandescent light, large amounts of electric energy will be converted to heat energy, only a tiny part of ( May be less than 1%, not calculated) Can be converted into useful energy. All incandescent bulbs light is light, but all sorts of color composition proportion is composed of light emitting material ( Tungsten) And the temperature. Ratio imbalance will lead to the color of light color, so the color of the object under incandescent lamp are real enough. Incandescent lamp life associated with the filament temperature, because the higher the temperature, the easier it is for the filament to sublimation. Fluorescent lamp fluorescent lamps also known as fluorescent lamp, how it works: fluorescent tube in short is a closed gas discharge tube. Main gas pipe for argon ( 氩) Gas ( The other contains neon neon or krypton krypton) Air pressure about the atmosphere of 0. 3%. Also contains a few drops of water - — The formation of trace amounts of mercury vapor. Mercury atom accounts for about one over one thousand of all gas atoms. Fluorescent lamp of mercury by atoms, released by the process of gas discharge ultraviolet ( The main wavelength for Mr = 2537 x 10-2537 10米) 。 Electricity consumption by about 60% can be converted to ultraviolet light. Other energy is converted into heat energy. Fluorescent lamp by the tube inner surface of the fluorescent material to absorb ultraviolet light after the release of the visible light. Different fluorescent substances emit visible light. General ultraviolet light is converted to visible light efficiency is about 40%. So the efficiency of the fluorescent lamp is approximately 60% * 40% = 24%, — About twice for the same power of tungsten lighting energy-saving lamps energy-saving lamps, also called compact fluorescent lamps ( Foreign CFL lamp) With high light efficiency, Ordinary light bulb is five times) , obvious effect of energy conservation, long life, Is 8 times better than ordinary light bulbs) , small volume, convenient to use. Its working principle and fluorescent lamp are basically the same. Energy-saving lamps in addition to white ( Cold light) Now, there are warm light. Generally under the same wattage, an energy-saving lamp than incandescent lamp energy saving 80%, life expectancy extension of 8 times, thermal radiation is only 20%. Not strictly, the energy-saving light of a lamp 5 watts light can be considered as equal to 25 watt incandescent lamp, 7 watts of energy-saving lamp is approximately equal to 40 watts of light, 9 watt is equal to about 60 watts. LED lights LED lights, 发光二极管) Also called light-emitting diodes (leds), it is a solid-state semiconductor devices, can be directly put DianZhuan into light. The heart of the LED is a semiconductor chip, chip attached on a bracket, at the end of the end is negative, the other end connected to the power of the anode, the whole chip is encapsulated by epoxy resin. Semiconductor chip consists of three parts, one part is a p-type semiconductor, dominated by holes in it, the other end is n-type semiconductor, mainly electronics, here in the middle is usually one to five cycles of quantum well. When a current flows through a wire to the chip, electrons and holes will be into the quantum well, quantum well in electron and hole recombination, then will be issued in the form of photon energy, this is the principle of LED. LED lamps and lanterns has small volume, low power consumption, long life, avirulent environmental protection, and many other advantages, the LED lamps and lanterns from outdoor decoration, engineering lighting, gradually developed into household lighting.
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