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why LED lamp save energy

Why do LED lamps save energy? After looking at some comparisons, we know how much led plays for us. Our inventions are becoming more and more advanced and environmentally friendly. We should firmly believe in the benefits of LED lamps and make good use of them. The working principle of different types of lamps will be different. Precisely because of this, their energy-saving effects are also different. Let's talk about the reasons for energy saving of LED lamps.

1. Working principle of incandescent lamp
It converts electric energy into thermal energy, and then radiates light energy from thermal energy. Its working process is to heat the temperature of the filament to more than 2000 ℃ through electric current, just like the red iron can emit light. In this process, a large amount of electric energy is converted into heat energy and wasted, and only about 10% of electric energy can be converted into useful light energy.

2. Working principle of fluorescent lamp
In a sealed gas discharge tube containing argon (neon or krypton) gas and mercury, the temperature of the filament is heated to about 1000 ℃ by current. The filament coated with electron powder begins to emit electrons to collide with argon atoms and obtain energy. After argon atoms collide with mercury atoms, they transition to ionization and emit ultraviolet light to excite the phosphor coated on the wall of the gas discharge tube to emit white light. The electro-optic conversion efficiency of the fluorescent lamp is about 25%, It is about twice that of tungsten filament lamps with the same power.

3. Working principle of LED energy saving lamp
LED lamp is a kind of semiconductor device that can directly convert electric energy into light energy. After power on, it converts 90% of electric energy into light energy. The remaining electric energy generates a small amount of heat energy when the semiconductor device works, and the electro-optic conversion efficiency is as high as 90%. In short, the LED energy-saving lamp does not need filament heating and is a cold light source. It is different from the working principle that the light emission of other lamps must generate heat. It abandons the process of converting electric energy into heat energy and then into light energy, and directly converts electric energy into light energy. Under the condition of producing the same brightness, it consumes the least energy source. Therefore, LED energy-saving lamps are more energy-saving than other lamps.

LED lamp is really designed from the aspect of environmental protection. It can indeed reduce energy consumption and bring benefits to our life. We should advocate environmental protection to create a better society.