How to identify the advantages and disadvantages of LED lamp bead lighting?
With the continuous improvement of LED lamp bead technology, its high cost performance, wide application scale and other characteristics have become the "hot favorite" of the lighting market in the short term. With the increase of policy incentives in various countries and the demand for replacement of new and old light sources, the hidden demand in the LED lamp bead market is increasing year by year. In the future, with the improvement of e-commerce channels and the promotion of Internet +, the penetration rate of LED lighting indu
Calculation of colorful light emitted by full-color LED lights
Light-emitting diodes, referred to as LEDs, are composed of a PN junction like ordinary diodes and also have unidirectional conductivity. When a forward voltage is applied to the light-emitting diode, the holes injected from the P region to the N region and the electrons injected from the N region to the P region will be respectively connected with the electrons in the N region and the empty holes in the P region within a few microns of the PN junction. Hole recombination, resulting in spontaneous emission of fluorescence. The energ
How to solve the uneven lighting of LED lights?
LED strips are common in daily life lighting. They can be seen everywhere in outdoor shopping malls, restaurants, and hotels. Indoors, it can be said that almost all household lighting uses LED strips. On the one hand, it is an indirect lighting method, on the other hand. On the one hand, it plays a very good decorative effect and creates an atmosphere of the environment. But we can find that the LED lights sometimes emit unevenly and dimly. What is the situation? How to solve it?
LED light fiber optic lighting
Due to the many characteristics of fiber optic lighting, it has a wide range of applications. Now, its typical applications are analyzed and explained according to different places of use and effects. 1) The desktop lighting of the video conference adopts a terminal light-emitting system, and is equipped with a condensing lens type light-emitting terminal accessory to illuminate vertically from the top, forming a point-like light spot on the desktop,
Insulation pleas Because the internal space of LED energy-saving lamps is limited, when constructing the design, attention should be paid to the insulation requirements between the risk live parts and accessible metal parts. Insulation can be space isolation and creepage spacing, or insulating sheets. According to the requirements of the specification, the space isolation between the dangerous live parts and the accessible metal parts should reach 3.
Considerations for LED fluorescent lighting planning needs
With the development of LED technology, quotations are getting lower and lower, and the trend of rising electricity prices is obvious. LED fluorescent lamp design needs to pay attention to the following aspects: heat dissipation We know that LED has the highest optical power, but it st
Are LED lights easy to cause leakage tripping?
LED lights are easy to cause leakage tripping. Generally speaking, leakage or "slight" short circuit will not cause tripping. The main reason for tripping is that too many electrical appliances are connected, resulting in excessive load current of the circuit, which leads to tripping. You can try using a test pen to test the metal casing of the LED power supply to see if there is serious leakage.
What are the special benefits of intelligent LED always-on fill light?
Our country is in the accelerated stage of urban construction. People are super-aggregating in the city in terms of space movement, and things are also showing the phenomenon of strong agglomeration and weak diffusion in the city. The economy and urbanization have achieved rapid development, and at the same time, a series of problems have emerged. , such as urban traffic congestion has aroused great concern from all walks of life. Since this stage is also the growth period of transportation development, it can be considered to guide
How to Make Solar LED String Lights
Step 1: Prepare Materials 1 battery powered light pack with battery compartment. 1 solar panel 2.0v @ 80mA (I use two 1.2v NiMH in parallel. If you want to use one, you need 2v @> 20mA. 1 IC (QX5251F) will discuss this later.
Which is brighter, incandescent light or led light?
Both bulbs are 100W. If the power supply is the same and the working hours are the same, then their power consumption is the same. Which one weighs a pound of iron or a pound of cotton? Of course, the weight is the same, but the volume is not the same. Similarly, LED lamps and incandescent lamps are very different when they are used. The most intuitive thing is that LEDs are brighter than incandescent lamps. 1. LED lights are better than incandescent
Analysis of common safety problems of LED fluorescent lamps
At present, the common LED fluorescent lamps are basically designed with reference to T8 and T10 fluorescent lamps in terms of appearance and size. The difference is mainly due to the different materials used for the light source. Fluorescent lamps are excited by external ballasts. From an electrical point of view, LED fluorescent lamps are not only light sources, but also very similar to lamps. They must not only meet the requirements for the size of the lamp cap and heat resistance and fire resistance in the safety standard for do
Types of Monochromatic LEDs and Their Development History The earliest LED light source made of semiconductor P-N junction light-emitting principle came out in the early 1960s. The material used at that time is GaAsP, which emits red light (λp=650nm). When the driving current is 20 mA, the luminous flux is only a few thousandths of lumens, and the corresponding luminous efficiency is about 0.1 lumen/watt. In the mid-1970s, the elements In and N were
Introduction to the types of LED light sources
There are many kinds of LED lights, such as led lighting, led strips, led light cups, led energy-saving lamps, led decorative lights, led buried lights, led contour lights, led flood lights and so on. LED structure and light-emitting principle The basics of how semiconductor materials can generate light have been understood 50 years ago, with the first commercial diod
What is the principle of TN LCD screen and STN LCD display?
Since the emergence of LED light strips, it has been widely used in indoor fields such as hotel lighting, commercial lighting, and home lighting. In the past few years, outdoor landscape lighting has been hot. Due to the low entry threshold for LED light strips, a large number of enterprises have gathered to produce LED light strips. These light strips have also been applied to landscape lighting. However, due to product quality and technical problems, Many projects have "fallen and fought", so that it is rare to see LED light strip
Does the led light still emit weak light and consume power?
Does the led light still emit weak light when it is turned off? LED lighting itself is very energy efficient. The led light still emits weak light when it is turned off, which is caused by weak leakage or induced electricity. The leakage electrode is weak, so it can be ignored, and there is no need to worry about power consumption. When the LED light is turned off, there is g
High-power LED chip manufacturing method
We know that the main components of high-power LED lamp beads are high-power LED chips. How to manufacture high-quality LED high-power chips is very important. Today, HC LED Screen Network will take you to understand the common methods of manufacturing high-power LED chips: 1. Increase the size method By increasing the effective light-emitting area and size of a singl
The game between LED lamps and incandescent lamps in lighting
LED or light-emitting diode is a solid light source. When a forward voltage is applied to both ends of the light-emitting diode, the minority carriers and the majority carriers in the semiconductor recombine, and the excess energy released will cause photon emission. Using different materials, it can be made into light-emitting diodes of different colors. As a new light source, in recent years, major companies and research institutions have been developing LED research, which has greatly improved its luminous efficiency. The joint venture between
Technical principle of LED solar lamp
1. Definition of LED solar lawn light Solar lawn lights mainly use the energy of solar cells to work. When the sun shines on the solar cells during the day, the light energy is converted into electrical energy and stored in the battery, and then the battery is used as the LED (light emitting diode) of the lawn lamp at night. ) to provide power. Its advantages are mainly safety, energy saving, convenience, environmental protection and so on. It is suitabl
What is the reason for the burning of LED lights?
LED light is a very energy-saving lighting fixture. It is a cold light source. Now this kind of light is used in many occasions. Many friends will find that some LED lights will be burnt and damaged soon after use. I think that the burning of LED lamps is generally caused by the following reasons. The first is that the quality of the LED lamp beads is not good enough. The design itself is defective, causing damage to the power supply. Fourth, due to
Reasons and Solutions for Damage to LED Panel Lights
What should I do if the led panel light is broken? Turn it on and see. If the light is dimly lit, you can find out if there is a single LED that is completely dull. The one with no light is burnt out. You can continue to use it. Another situation is that the driving power supply is broken, and the corresponding driving power supply is replaced. For overhauling the LED light, you can use a flat-blade screwdriver to carefully pry it open along the meta
How to remove the led panel light
How to remove the led panel light 1. Disassembly of the square panel light Push it straight up, it's directly on top. 2. Disassembly of circular panel light Pull down hard, it is stuck by a card, read the insta
Typical LED advertising light circuit principle
LED advertising light control circuit is a circuit that can be used for residential yards, roads, landscape lighting and decoration. The LED advertising light control circuit is a circuit that uses LED as a display device, and controls the LEDs of different colors to turn on and off regularly through the logic gate circuit, which has the effect of advertising warning. The control circuit of LED advertising light is mainly composed of power supply circuit, control circuit and di
Types and characteristics of high pressure sodium lamps
Types of high pressure sodium lamps 1) Ordinary high-pressure sodium lamps use atmosphere as starting gas, and the vapor pressure of sodium in the discharge tube ensures the maximum luminous efficiency of the lamp. Its characteristics are high luminous efficiency and long life, but the light color is poor, and the general color rendering index is only 15-30. Therefore, it can only be used for lighting LED light strips in roads, factories, etc. 2) The high-pressure sodium lamp that directly replaces the fluorescent high-press
Comparison of high pressure sodium lamps and led lamps
1. Comparison of Led lamps and high-pressure sodium lamps - analysis and comparison of energy efficiency The lighting installation power of the two should be compared on the premise of reaching the same illuminance (brightness) level and close to the lighting quality standard. Due to the high luminous efficiency of high-pressure sodium lamps (250~400W), the luminous efficiency can reach 130~1401m/W, while the luminous efficiency of low-power lamps (100~150W) is about 80~1001m/W
Dongguan XINYUDA Technology Co., Ltd. was established in Hong Kong by Hong Kong Konlida International Group Co., Ltd. in the 1990s, focusing on LED R&D and investment. After more than ten years... NewsLetter
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