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 [...]

Let's first look at the structure of incandescent bulbs. "PR" is the most common flashlight lamp bulb. They have a contact metal base with a metal ring, a glass cover and a glass capsule containing a filament. The light bulb is the metal ring is fixed on the light, so it will not shift at the time of the collision, but it is possible to break or break the bulb filament. The double - needle bulb is a small glass capsule with a filament and two pins. This bulb is plugged into the socket and fixed on the socket. So [...]

Light efficiency energy saving. Imported new ultra-high brightness high-power LED solid-state light source, energy saving, high light efficiency, long service life, maintenance free, no subsequent cost of use. Three major functions. Increase anti-skid function: granular increase lamp surface friction, with anti-skid function, prevent palm sweating contact lamp slide. Increase health care function: granular contact palm different points, indirectly promote the palm parts of the blood circulation, help workers relieve fatigue, achieve health effects. Increase heat dissipation function: granular increase the heat dissipation area of the lamp, accelerate the heat generated in the process of lighting, effectively prolong the lamp life. [...]

The flashlight product is easy to do, it is difficult to do light flashlight. Whether traditional lighting companies or LED new light source enterprises, there is no certain loser and winner, which has nothing to do with the market economy and products, and ideas related. With the continuous development of the lighting industry, explosion-proof flashlight into the lighting market, LED flashlight from the initial stage of rapid development to the application stage at present, in the process of development, development of light LED flashlight lighting enterprises to real breakthrough innovation. LED flashlight in twenty-first Century as a new light source, [...]

1, head number, head number to moderate. Household generally do not exceed 12, the use of the battery in the 2 ~ 3 for good, and then a little big wave for other special needs can be determined according to their needs. Of course, high-power LED flashlight generally can not reach the number of 12. 2, welding, welding to prison. Each diodes are connected by welding on the circuit board, if the weld contact is not good, it may cause the bulb does not light or affect the whole service. 3, ordinary batteries, battery and lithium battery two, although the [...]

The AC power supply through a resistance capacitance step-down unit after this, signal display and a bridge rectifier, it is used to charge the battery, the switch, when the switch is open, closed ahead, a group of light emitting diode connected to the work below, this is due to the reverse cutting diode D5 check, above a group is not working; when the switch is closed due to backward, forward by D5, the two groups of light emitting diodes are given the same power and work. This is the flashlight can have two different light. The main role of D5 [...]

LED flashlight charging characteristicsRechargeable LED flashlight is a new flashlight with LED (light emitting diode) as light source. Because LED has high brightness, low power consumption, long life, small size and other characteristics, it is the ideal choice for portable lighting. LED principle is similar. But the difference is, LED is not through the electronic transitions inside the atom to emit light, but by applying a voltage across the PN junction LED, the PN junction itself in a level form (in fact, is a series of energy), then the electrons at this level and jump to the light emitting photons. [...]

Led flashlight is generally used 18650 lithium battery has become the mainstream, and the market explosion 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 the side, [...]

Flashlight need to check and test regularly, if found not use, need timely maintenance and processing. In the usual use of the state should pay attention to the use of bright flashlight instructions. The flashlight is a lighting tool but It is quite common for the explosion-proof torch for all of us, is a very strange thing. This article only talk about the flashlight maintenance methods and instructions. Urge the battery is full, it is best to use the second, this can let the flashlight battery lamp and prolongs the service life of the product! With the hand torch heat [...]

If there is a LED light is not bright, please follow the following methods for initial maintenance: 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 problem. Two, check the battery: battery power [...]

Flashlight flashlight products in line with the main requirements of the relevant instructions, you can add a CE logo, but not in accordance with the relevant standards of the general Led flashlight quality requirements can use the CE logo of the flashlight. If any one with CE logo related products instructions related to your flashlight products, and you want to export to any one of the 30 members of the European Union and the EFTA, so CE certification will be the key to your success in trade to europe: After the enlargement of the EU Chinese light Led flashlight enterprises [...]

1: lens focus: the use of light through the strict optical path design of the convergence of the light. Features: small size, convergence effect is good, but the limited range of use, only for a large divergence angle and light core smaller led. 2: reflective cup condenser: the use of light through the design of the lens to focus light. It can be divided into smooth cup and cup of orange peel, better scattering concentration effect of smooth cup less light, but light effect is poor, uneven; concentrating effect than the same type of cellulite cup cup to smooth, pan [...]

In view of the limited knowledge of the consumer LED, a collection of questions to be asked to make the following answer, I hope to help you better use LED to make their own things. 1, LED drive current, voltage is how much? I bought the 50W is how much current, voltage use? 1W LED drive current is 350mA, the voltage varies according to the color is not the same, generally white, blue, green are 3.0-3.6V ranging, and the yellow light, red light voltage is 1.8-2.4V; Using the current 50W will use the current and voltage according to different chip [...]

1, the first few moderate. Household general not more than 12, the use of the battery in the 2~3 relatively good, and then a little bit of a waste, for other special needs can be determined according to their needs. 2, welding to prison. Each diode is connected by welding on the circuit board, if the weld contact is not good, it may cause not bright or affect the whole service. 3, try to focus the spotlight flat bulb. The torch is unlike ordinary flashlight can adjust the focal length, the purchase should pay attention to do not have astigmatism [...]

Overview: the general problem of a small flashlight in general is that the battery life is too short. According to statistics, the average flashlight power consumption is about 2 watts. As shown in figure LED flashlight, the electricity consumption is only 4 24mW, 5 alkaline battery can provide more than 80 service (which means that the sustainable use of 1 months) although the brightness of this flashlight is very limited, but for ordinary road lighting is enough. Working principle: the core of the LED flashlight is a 7555 integrated circuit (not use ordinary 555). A white light emitting diode (if [...]

The AC power supply through a resistance capacitance step-down unit after this, signal display and a bridge rectifier, it is used to charge the battery, the switch, when the switch is open, closed ahead, a group of light emitting diode connected to the work below, this is due to the reverse cutting diode D5 check, above a group is not working; when the switch is closed due to backward, forward by D5, the two groups of light emitting diodes are given the same power and work. That's the flashlight. There are two different kinds of light. The main function of [...]

Buy flashlight for industrial and outdoor lighting, Led flashlight bright flashlight for comfort, good color performance, selection of electric light source light Led flashlight high color temperature. Low color temperature: K's temperature in 2700K 3500K. As at 8 in the morning before the sunrise, lamp, light candles and low color temperature, long red, orange light contains more, the color is softer, gives the visual sense of warm warm; Led flashlight with moderate color temperature: K's temperature in 3500K 4500K, such as the morning after 8, the light from the sun before the 10, contains less orange light and more blue, [...]