What is the LED Ceiling light Working principle

The LED Ceiling light consists of light-emitting diodes. Made of compounds containing gallium, arsenic, phosphorus, nitrogen, etc. visible light and can be used to make light-emitting diodes. As an indicator in circuits and instruments, or form a text or digital display. The GaAs diode is red, the Gum phosphate diode is green, yellow, and blue light. That is why LED Ceiling light has so many colors. What is the LED Ceiling light Working principle?

Here is the content list:

•Composition

•Core part

Composition

The LED Ceiling light-emitting diode similarly consists of a PN junction and also has unidirectional conductivity. When a positive voltage is added to the light-emitting diode, the holes are injected into the P region, and the electrons are injected into the P region, combined with the electron and hole in the N region within several microns near the PN junction, producing spontaneous radiation fluorescence. Electrons and holes have different energy states in different semiconductor materials. When the electrons and holes combine, the energy released is somewhat different, and the more energy released, the shorter the wavelength of the light emitted is. Common used are diodes emitting red, green, or yellow. The reverse breakdown voltage of the LED Ceiling light luminous diode is greater than 5 volts. Its forward volt amp characteristic curve is steep and must be limited in series to control the current through the diode.

Core part

The core part of the LED Ceiling light is a wafer consisting of the type P semiconductor and type N semiconductor, with a transition layer between the type P semiconductor and type N semiconductor, called the PN junction. In the PN junction of some semiconductor materials, the injected few carriers compound with most carriers to release the excess energy in light, thus converting the electrical energy directly into light energy. PN junction plus reverse voltage, a few carriers are difficult to inject, so not light. When the LED Ceiling light is in a positive working state (i. e., both ends plus a positive voltage), and the current flows from the LED Ceiling light anode to the cathode, the semiconductor crystal emits a different color of light from ultraviolet to infrared, and the intensity of the light is related to the current.

The main part of the LED Ceiling light light-emitting diode appeared as early as 1962, early only low red light, after developing other monochrome light versions, light today throughout visible, infrared, and ultraviolet light, and increased luminosity to considerable luminosity. It is also used as the indicator light, display board, etc.; with the continuous progress of technology, luminous diodes have been widely used in display and lighting. The LED Ceiling light is one of these applications. The various specifications of the LED Ceiling lights are suitable for use in different places, mainly depending on the user required brightness, exposure distance, the width of the installation place, etc. Cixi Yuanhui Lighting Electric Co., Ltd. many tests of LED Ceiling light，and the quality qualification rate is guaranteed. If you need LED Ceiling light, you can consider our cost-effective products. Cixi Yuanhui Lighting Electric Co., Ltd. materials are non-toxic and tasteless, perfect after-sales service, you can have no worries.