ข้อดีของหลอด LED และ หลอด Incandescent
I believe that many people You probably know that. At present Light bulbs come in many different forms. There is a wide variety of uses. If we sit down and understand it and get to know it all. It may not be necessary for us to get to know the types of light bulbs. or all of the artificial lighting technology that is available We will give an example of the types of light bulbs that we all use regularly to help you understand.
For this article we will talk about A comparison of the light bulbs that we all use. And can be seen everywhere, whether it be office buildings, restaurants, houses, the light bulbs that will be mentioned. are as follows
1. Incandescent light bulb (incandescent)
2. LED light bulb (Led)
We will briefly introduce these 2 types of light bulbs first. What are the characteristics of each type of tube?
What is an incandescent light bulb? (incandescent)
A simple incandescent light bulb, or heat bulb, or incandescent light bulb (English: incandescent light bulb, incandescent lamp, or incandescent light globe) produces light by heating a metal wire filament until it reaches a high temperature and emits light. A glass bulb filled with an inert gas or a vacuum to prevent the hot filament from coming into contact with air. in halogen bulbs A chemical process returns the metal to the filament. which extends the service life This bulb receives electricity from the power terminals. (feed-through terminal) or wire embedded in glass Most incandescent bulbs are used in sockets which mechanically support the bulb and connect electrical current to the bulb's electrical terminals.
Conventional incandescent bulbs are produced in a variety of sizes. Is illuminating and withstand potential differences from 1.5 volts to approximately 300 volts. This type of bulb does not require external control devices. Has low maintenance costs And works equally well with both alternating current or direct current.
For this reason, simple incandescent bulbs are widely used in household and commercial electrical applications. as well as portable electricity, such as table lights, car headlights, and flashlights, and some electricity for decoration and advertising takes advantage of the heat generated by the filament of ordinary incandescent light bulbs, such as incubators. Egg incubation box for poultry Heat lights for garden simulation environment (vivarium) of reptiles, infrared heating in industrial heating and drying processes. This excess heat increases the energy required by a building's air conditioning system.
What is an LED bulb? (LED)
LED is an abbreviation for Light Emitting Diode. Its work is similar to the work of a diode. Some people may call LED a light-emitting diode. It consists of P and N type semiconductors sandwiched together with one surface smooth and shiny like glass. When the LED is directly biased, it causes the electrons in the N type semiconductor to have higher energy so that they can run across the next joint. Together with the holes in P, the movement of electrons across the PN junction causes current to flow. As a result, the energy level of the electrons changes and energy is emitted in the form of light waves. The color of the light produced by the junction depends on the type of material used to make the LED, both liquid and gas types, such as used. Gallium phosphide (GALLIUM PHOSPHIDE,GaP) causes red light. Use gallium arsenide phosphide (GALLIUM ARSENIDE PHOSPHIDE, GaAsP) to produce yellow and green light. Controlling the amount of light controls the current flowing in the LED bulb. If the current flowing is too high, it will make the bulb very bright. But if a high current is applied, it will cause the semiconductor junction to generate so much heat that the tube structure will be damaged and cannot be used.
In conclusion, what type of tube? What's better? Actually, that Each type of light bulb has properties. There are different advantages and disadvantages. Therefore, we should weigh that. Buying a light bulb in any form is worthwhile and most suitable for our use.
