Adding silicon atoms (3+4=7), this compound will form an empty electron space, and scientists willThis life is called "hole", and this compound is a P-type semiconductor, which acts as a receptor. In other words, willThe element of IV A group added to silicon atom will give an extra electron because of 5＋4=9. This kind of compoundIt is an N-type semiconductor and plays the role of a donor.D‧PN junction (PN junction) diode is a combination of N-type semiconductor and P-type semiconducto
Light Emitting Diode (LED) was developed in the laboratory in 1950 and was developed byHP started commercial mass production. Early LED lights had only monotonous dark red electronic indicator products, but in 1992Japanese scholar Shuji Nakamura (Shuji Nakamura), who worked in Nichia, <Note 1> Breakthrough in blue LEDAfter the technical obstacles, the colors gradually enriched, the brightness gradually increased, and the display (Display),Various package types such as surface mount type (S
When 2013 was about to pass, the entrepreneurs who rushed into the LED lighting (semiconductor lighting) industry at the beginning of the year found that although there were a lot of orders, the profits were not as big as imagined.A few days ago, the LED industry independent research organization Gaogong LED held its annual meeting in Guangzhou. The latest survey data released by Zhang Xiaofei, the president of the organization, showed that in the first three quarters of this year, the total out
With the rapid decline in LED product prices and gradually moving toward a sweet spot, Taiwan’s municipal adjustment units have recently been optimistic about the growth of LED lighting next year, which is expected to bring new growth momentum to the LED industry and Taiwanese manufacturers. The LED (light-emitting diode) industry has very limited growth space in backlight applications, and even the output value will enter a period of decline. Fortunately, with the rise of new LED lighting app
The LED is a solid luminous body, which is shock-resistant, impact-resistant and not easily broken. The waste can be recycled and there is no pollution. The light source is small in size and can be combined at will. It is easy to develop into a light, thin, short and small lighting product, and it is also easy to install and maintain. Of course, energy saving is the main reason why we consider using LED light sources. Perhaps LED light sources are more expensive than tradition
1. The LED rigid light bar is assembled with PCB rigid board, and different components are used according to different needs. The advantage of the rigid light bar is that it is easier to fix, and it is more convenient to process and install, but it is not suitable for irregular places. 2. The LED flexible light bar uses FPC as the assembly circuit board, and uses the LED patch for welding assembly. The thickness of the product is only 1mm thick, which does not take up spa
The cost of a single pole of high-pole lights is relatively high. For customers who want to purchase high-pole lights, they will inevitably want to buy products of good quality at the lowest possible price. Here, the manufacturers of high-pole lights have introduced to us if you can reduce the cost of high-pole lights, come and take a look.How to save electricity and reduce energy consumption is a long-term research issue for manufacturers of high-pole lamps. Therefore, the entire high-pole lam
As an electrical product, LED lamp holders naturally need to have cables connected inside. For product safety, corresponding wiring standards are required. Below, professional manufacturers will introduce us to the internal wiring standards of LED lamp holders. Come on Check it out.LED lamp caps are required by the specifications. The internal wiring of LED lamp caps needs to be checked in four areas: wire diameter and insulation thickness, mechanical damage, insulation layer heating temperature
Are integrated street lights better than ordinary street lights? This is a question that many friends have. It is indeed more functional than ordinary street lights. Then, specifically, what is the difference between the two of them? Let's compare and understand.1. Installation comparison When installing the integrated street lamp, there is no need to set up additional messy lines, only a cement base and a battery pit within 1m, which can be fixed with galvanized bolts. There are messy o
Many friends who don't know much about LED lamp holders think that the LED lamp holders all over the world are the same. In fact, this is wrong. There are many types of LED lamp holders. Therefore, if you want to choose the most suitable product without making a mistake when purchasing, you need to understand its various categories in detail. Let's take a look at the following introduction.The installation method is divided into bayonet, screw and other methods, and the material is divid
High pole lights are particularly vulnerable to lightning strikes due to their product characteristics. Therefore, lightning protection measures are particularly important. So, how do high-pole lamp manufacturers take lightning protection measures? Let's take a look at the following three points.Combination of external lightning protection and internal lightning protection: Now the outer conductor material of conventional street lamp poles is selected, which is the same as the lightning r
Because of its special use environment, this product has very high requirements for its actual lighting effect. To achieve a good use effect, it needs to meet some basic standards when leaving the factory. The following is Let’s take a look at the introduction brought to us by professional high-pole lamp manufacturers.The current high pole lamp lens material is an improved optical material, the transmittance is 93%, and the temperature resistance is -38-+90 degrees.2. LED high pole lamp lens, ma
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