In LED application problems and solutions In current practice, the problems existing in the high power LED is mainly manifested in the following aspects: 1. To ensure that LED to poor working conditions and the cognition to the power supply technical, product on the power supply fault emerge in endlessly. 2. The application of LED street lamp today practical road concept is not clear, blind and high power gas discharge lamp "rival" regardless of the cost of production of large power LED street light, cause not practical expensive street light products to promote. 3. Feel inadequate to road lighting requirement, [...]

The principle of small family indoor lamps and lanterns chooses The principle of small family indoor lamps and lanterns choice: Reduction principle: lamp act the role ofing should have the effect that make the finishing point in the room. Too too complex modelling, multifarious design and color, are not suitable for simple design of the room. : convenient principle major person has experienced change the awkwardness that sucks dome light bulb: stepping on a table, stepping a chair, hold one's head high 90 degrees, carry double arm overdoes 2.5 meters tall taller even ceiling. Replacement bulbs must consider when choosing [...]

The remarkable high sharp LED dimming technology The volt-ampere characteristics of leds So-called volt-ampere characteristic of LED, LED p-n junction is through the () may refer to the LED revolution, revolution, change characteristics of current with voltage, on the oscilloscope can be very vividly display the change (as shown in figure 1), a complete volt-ampere curve including the forward and reverse characteristics. Normally, reverse characteristic curve is relatively steep, when the voltage exceeds a certain threshold, the current will be exponential rise, thus LED p-n junction breakdown. And the LED forward voltage is determined by the forward current. From the [...]

"Three ask a" comprehensive knowledge decryption LED chip 1, what is the LED chip manufacturing process? LED chip manufacturing is mainly in order to make effective and reliable low ohmic contact electrode, and can meet the minimum pressure drop between can contact materials and provide the pressure pad of welding line, at the same time the light as much as possible. Crossing the membrane process generally by vacuum evaporation method, the main in 1.33 x 10? 4 pa under high vacuum, resistance heating or electron beam bombardment melt material, heating method and under low pressure into a metal vapor deposition [...]

The LED application Who let it return to the light quality? Level with the lighting of LED light source in material technology, manufacturing technology, the application of mature, one day after some years based on the environmental problem is increasingly serious, disorderly economic development, all countries in the world energy conservation and emissions reduction under the pressure of reality, the LED lighting application was finally explosion point, by the deployment of the reason is not because the LED light have much good, but because of who I am LED energy saving, based on this, the government's policy guidance, the media, [...]

LED lights with considerations and parameters of choose and buy Now LED lights belt is one of indispensable to home lighting products, need to pay attention to when buy 6 elements. Leds with low because the threshold of the production, there are many factories and mills have the project, lead to the LED lamp and evil people mixed up with the market, the production of the product quality is uneven. Without the knowledge and experience are easy to be cheated to buy inferior lamp tape. But experienced people still have a way to identify, formal manufacturers of LED lights belt [...]

LED epitaxy growth process of the solution To explore the growth process of LED epitaxial wafer today, early in the era of integrated circuits, each of the 6? The epitaxial wafer on thousands of chips, now submicron line width of VLSI, each of the eight? On the epitaxial wafer can only complete YiLiangBaiGe large chips. Epitaxial wafer manufacturing is moving? Investment tens of billions, but it is all the basis of the electronics industry. Silicon column of grown up, you first need to put a high purity silicon ore in a furnace, and add predefined metal material, make the silicon [...]

LED lamp bead common problems and solutions 1, are the problems caused by power supply not normal: 01. Check the power supply power supply have a normal job, designator light had lit up, if there is no light up, please check the power supply have good connection; 02. Check to see if the lamp bead wire with power supply anode connection is good, is there a reverse phase, if you have the above problem, please correct connection. 2, LED lamp bead to the requirement of voltage: Nominal 3 v LED lamp bead, in fact, different color also have different requirements [...]

On the market of LED lamp lens change rapidly, different places and different customer need optical effect also vary widely, therefore welcome the challenge of LED lamp lens design. How to design a high light transmittance, high grade, low-cost lens has become one of the main research fields of LED to shoot the light with the light. It is well known that the LED lamp product replacement fast jaw-dropping. The development of the LED lamp lens is by leaps and bounds. But on the whole, the most attention on the market or the visual effect and the whole lighting effect [...]

How to install and use Ceiling lamp? (1) install the ceiling in the masonry structure, the pre buried bolt, with expansion bolts, or nylon or plastic plug plug; do not use the wedge. And the bearing capacity of the fixed parts should be matched with the weight of the ceiling lamp. In order to ensure that the ceiling lamp is firm and reliable, and the service life can be prolonged. (2) when the expansion bolt, the bolt should be selected according to the technical requirements of product specifications, the hole diameter and buried depth should be consistent with the specification [...]

Small pitch LED display technology advance broke the LED display can only be used in the field of outdoor law, with exquisite degree of quality continuous improvement, and low light high ash technology to solve the problem of small spacing, LED display in the indoor display engineering field, especially the control room and other high-end display market launched a shock. Eight dimensional analysis of small spacing LED engineering display advantage Comparison of mainstream display technology In the field of indoor engineering display, small spacing LED display as a latecomer, you need to deal with the competition from the DLP splicing, [...]

Why is the highest price of LED lamps? Recently, the public Liu to the supermarket to buy light bulbs, bulb shelves can let him pick hualiaoyan a superb collection of beautiful things. "In addition to the traditional incandescent and energy-saving lamps, and a LED lamp, I don't know how to lighting the lamp?" incandescent lamp, energy saving lamp, LED lamp which cost-effective? Found through experiments, home lighting or cost-effective LED lamps. LED lamp is 16 times more expensive than incandescent lamp At present, incandescent lamps are facing the situation is gradually eliminated, energy-saving lamps become mainstream in the market. The [...]

Design of side guide light LED backlight I. Introduction As human society entered the era of knowledge economy, information and knowledge to achieve real-time, with terminal equipment to achieve the exchange of information display technology is developing rapidly, as the LCD display technology is one of the developed very fast, because LCD has its own shortcomings in no light, so most applications require supporting backlight. The backlight used is incandescent bulb, cold cathode fluorescent tube, EL and LED lamps, etc.. Each backlight technology has its own characteristics in a specific application environment. One of the advantages of LED technology has [...]

Chip is the core component of LED. At present, many domestic and foreign manufacturers of LED chip, and chip classification has no unified standard, according to the power classification, there are a large power and small power; if classified by color, mainly red, green, blue three; if the classification based on the shape, generally divided into square plate, two kinds of wafer; if according to the voltage classification, is divided into low voltage and high voltage DC DC chip chip. Comparison of domestic and foreign chip technology, foreign chip technology, the domestic chip production is not heavy technology. Substrate material [...]

LED era, we in all aspects of life are visible in its presence, whether it is a car field, intelligence or industrial fields, because of its high efficiency, energy saving, long life, environmental protection and other features, the optional scheme has now lighting technology, and has been applied in lighting. One of the key factors that drive people to pay attention to LED lighting technology is that it greatly reduces the energy consumption and can achieve long-term and reliable work. Today, we will give you a practical extension of the LED circuit from the introduction of LED lighting drive circuit. [...]

First of all, let's talk about what is the LED driver power supply? It can convert the power supply to a specific voltage current to drive the LED voltage converter, normally: LED drive power supply input, including high voltage ac power frequency (mains), low-voltage dc, high-voltage direct current, low voltage high frequency ac (such as the output of electronic transformer). And the output of the LED driver power supply are mostly can change with LED positive pressure drop values and change the voltage of the constant current source. LED core components including power switch controller, the inductor, switch components (MOSfet), [...]

LED is a highly efficient light-emitting diode device, it must work in a constant current environment in order to continue to emit a steady bright light to illuminate the world. The driving power of the pros and cons will directly affect its luminous brightness and light quality. How to choose a good LED filament driving power supply is the key to the manufacture of LED filament lamp with good performance price ratio. At present, there are three kinds of power supply for LED filament lamp: One is about to be out of the resistance capacitance step-down power supply; Two is [...]

The problem about power LED flashlight: buy LED flashlight, some consumers blindly pursue high power flashlight, the higher power that represents the brightness is high, this is actually a misunderstanding to buy a flashlight. LED is a flashlight in the market is very popular, one of the reasons is because of its low power consumption, using the same battery capacity, long lighting time than ordinary flashlight, flashlight and between the power and the brightness is not completely proportional relationship, this also relates to a solar energy conversion, the greater the power only that, energy consumption is high, in fact, as [...]

Running water has great influence on the jade jade? Jade jade is not very expensive, but if you do not pay attention to the preservation of it may also appear the phenomenon of running water. Xiuyu running water will make the color and the degree of permeability becomes worse. There are many businesses in order to reduce the loss of water will run on the jade have a period of time in the water, the absorption of sufficient moisture to sell out, but when consumers buy a home, jade will return to the running water face. The effect of water [...]

According to South Korean media reported rumors, SHARP has informed the factory of Korea SamSung (Samsung), since 2017 will no longer provide LED screen panel to Samsung, Samsung makes the face panel gap of approximately 4 million pieces per year, emergency orders to another Korean panel maker LGD, according to the "Daily News" the science and technology news that SHARP Hon Hai shares investment, since the beginning of 2017 will sprint TV market. In the current panel production capacity, can not meet the needs of all, so SHARP will raise panel price, Samsung is no longer inclined to buy the [...]

At the beginning of the new year is the time of new Vientiane, Moupian layout. The first week of 2017, many LED companies will have moves: the chip giant raised the prices of some products, an optoelectronic Rawlinson a total investment of 5 billion 500 million LED lighting projects, Riyadh fund-raising 1 billion 200 million overweight VR/AR, Wright cross when the teacher ""...... "Several days of silence," the LED circle so lively again. More exciting please continue to look down! [dynamic] big coffee The industry of LED double Ruo price? Three new year price first shot fired" 2017 started the [...]

In 2017, will be an important moment in the television industry, the global TV manufacturers are in the technical route and business development of their respective crossroads." In the United States on January 4th local time on the eve of the opening of CES2017, Hisense group president Liu Hongxin officially announced the technology and product line. That night, in addition to released the world's first brightness, color gamut than LED dual color 4K laser TV, Hisense spotted QLED. Liu Hongxin said that as a new semiconductor nanomaterials, quantum dots with many unique nano properties, is an important material for the [...]

To prevent fakes or defective light flashlight, simple and easy to carry, is suitable for household necessities, experts remind consumers, household light LED flashlight to long-term preparation, not with a careless, come in handy at the crucial moment can reduce the loss, enhance self-protection awareness. Light the torch must choose the explosion-proof type, which can be used in fire and other inflammable and explosive places, and is safe and reliable to carefully examine its performance. Buy a large number of explosion-proof flashlight flashlight master a few key points, you can easily buy high-quality flashlight: A. look at the surface: fine [...]

Inspection and repair method for light flashlight If there is a LED light does not shine, please follow the following methods for primary repair: First, determine the fault: unscrew the tail, with a battery cathode, with a metal scissors or tweezers, connecting the battery negative electrode and battery beside the flashlight body bare unoxidized part, to see if the light. If you can, is the flashlight switch, please check in step 3; if there is no light please check the circuit positions and circuit board connections are open welding or soldering welding, please re welding if you can solve the [...]

Led flashlight is generally used 18650 lithium battery has become the mainstream, and the market on the explosion-proof flashlight battery possession of the number of fake, generally divided into several categories: 1 false capacity: The 18650 China battery technology in the 2200 volume, and many vendors in order to attract consumers, the battery capacity up to 3000 or 3200 false capacity, deceive consumers, reap more benefits. 2 refurbished battery: Refurbished battery from abroad, disassemble the battery, then refurbished by some illegal channels, a false capacity, the tired battery is very dangerous, the consumer is carry on a timed explosives in [...]

LED flashlight, also known as LEd flashlight, is a new type of light emitting diode as a light source, it has the advantages of power saving, durable, strong brightness, etc.. At present, from the market popular flashlight classification point of view, mainly divided into two: Rechargeable Battery LED flashlight and rechargeable battery flashlight. The rechargeable flashlight, through the classification of the battery is divided into: lead-acid batteries, lithium batteries, NI-H batteries, etc., due to the current low price of lead-acid batteries in the market share of the larger.

LED (light-emitting diode) has been used in a variety of electronic equipment for many years, but a few years ago, the production of LED brightness is not too high, the luminous efficiency is also low, so often used only as a indicator. In recent years, with the high brightness LED technology matures, the cost is also declining, a variety of different specifications of the high brightness LED is also widely used in the new lighting equipment. At present, the high brightness of the LED application in the flashlight, it can be said that the most suitable, but because of the [...]

LED is a new type of flashlight, since the advent of white LED, had been pushed out, but at the beginning because of the brightness of the white LED is low, the cost is high, it can be said that the product has been in the laboratory stage, the high price of ordinary people and no one dare have a small part of the military on promotion. With the improvement of the brightness of white LED, reduce costs, and gradually go as the ranks of the masses. The brightness increased mainly due to the brightness of ITO, almost doubled the [...]

Rechargeable flashlight currently in the market is very popular, from the perspective of the flashlight classification is popular in the market, mainly divided into two types: rechargeable battery and rechargeable battery flashlight flashlight and rechargeable flashlight battery, through the classification can be divided into: lead-acid battery, lithium battery, NI-H battery, because the current lead-acid battery the price is cheap, share in the market is big. The article will introduce the related knowledge of battery for everyone. The characteristics of nickel cadmium battery A. high life Battery charge and discharge cycles can provide more than 500 times, the life is almost [...]

One, first said the difference and brightness, we are always asking certain businesses flashlight light not bright ah what is Q2 and so on, let more people ask scratching their heads, XXX business and XXX business that several of the Q5 who is more bright, coma, simply can not answer, so to explain. The first LED early 5MM and domestic straw hat, but in the flashlight jar had eliminated, is now the South Korean Seoul and then a few do, and do more is a brand of electric lamp. The N P Q R brand to distinguish the brightness grade, [...]

Basic requirements: working flashlight requirements of different working environment on the flashlight is different, according to different types of work, suggests that sellers in the purchase of LED torch. The utility model has the advantages of durability, power saving, high brightness, etc., and a typical green lighting source. Eyes are very sensitive to light LED flashlight, but not direct light. Good LED flashlight with a waterproof function, should pay attention to the purchase of astigmatism. Strong flashlight waterproof, good seismic performance, that is, resistance to fall. New battery power is not too much; in charge, according to the charging speed [...]