LED lighting industry will usher in the development of high tide

China is currently the hottest LED lights, the Ministry of Science Ten thousand ten cities, driven by an amazing passion in advance, many people headlong into the market, appears to be the first lighting up. led lighting market heats up, from the moment the market, not to the future of LED lighting industry, the industry will usher in a period of rapid development.
Abroad, the current promotion of the first two areas is in 2,3, but this LED lights are very careful with foreigners. So even LED lights that make the blind boss is likely to become a "pioneer in the revolution", while the other two markets, but will develop in many industries "leading" force. At present there are 21 pilot cities, is expected to one million, the ministry plans approved 50 cities next year, is expected to 2 million, which is Chinese characteristics! Can be considered to create China speed! But the overall product maturity worrying; may also be lighting the first to be made a bad market, repeating some of the early LED downlight lamp is suspected, whether bubbles have more serious? Although very prosperous, very lively, can be expected after the government money, will eventually go through 2-3 years trained a number of good LED optoelectronic technology companies, this may be the ultimate purpose of government is located.
led lamp cup, should be concerned, lamp cup LED lighting is one of the first to start one of the areas, the program has been mainly the product is not mature enough, it is difficult large-scale application. From the previous casting, aluminum extrusion profiles changed now; but it can really solve the heat and power products have not seen, that is, so far do not have a commercial application product solutions. While the LED itself costs have dropped significantly, but the market has been no major improvement. Recently there are reports that some foreign Toshiba has introduced some light can be solved cup heat and power products and, if so, I think the market should be light cup will then follow T8-led, and soon up. The first LED is a promising area bigger one.
LED T8 tube similar applications, product solutions from the market point of view, there are close to commercial product launch, even that is the first to promote a mature market. Currently, Wal-Mart has started in the world with T8-LED in the replacement of traditional fluorescent tubes can be seen in this sub-field of hope is not far off. Current parking lot to do, shopping malls, advertising and other markets backlight; and the current production costs and prices have been near the point was close to business applications (150). Good product, both in the optical, thermal, and power handling are more mature program. Products are closest to commercialization. Of course, the current market, there are a lot of low-quality products. This is the biggest challenge. With the U.S. Energy Star standards and the introduction of the EU, I believe these problems will be greatly improved, that is, T8-LED commercial promotion also will begin.

Wave to create the largest professional production base for LED lighting products

August 31, the wave of the total investment of 750 million yuan building Linyi optoelectronic industry base (a) in Linyi City, Shandong Province, completed and commissioned. As a wave of $ 4 billion to build the largest semiconductor lighting industrial bases an important part of the new production base of billions of dollars to achieve annual production capacity of light, annual sales income over 50 billion yuan.
In the energy saving is increasingly becoming the context of global trends, the wave of capital increase in 2007, holding Raisen Huaguang into the field of semiconductor lighting. In 2009, the wave of semiconductor lighting for the overall layout of the upstream and downstream industry chain, invested 4 billion yuan to build China's largest optoelectronic industry base, covering Jinan, Weifang, Linyi three.
In the field of LED lighting, the current wave is the only one to master the red, yellow, blue and green color gamut LED chip proprietary vendors, is the first R & D high-brightness LED epitaxial wafers, chip company, its LED chip production and sales the country's second.
According to reports, the wave of Linyi optoelectronic industry base covers an area of 300 acres, a building of 112 acres, has the largest domestic professional indoor and outdoor lighting products, semiconductor monomer production plant, the main R & D semiconductor lighting source, and indoor and outdoor lighting products. Reference wave of the upstream LED chip and IC industry's R & D results and the hardware and software integration technology, this base to build a self-owned intellectual property rights of R & D platform, has applied LED display products obtained 54 patents.
31, the wave also introduced several new LED lighting, covering downlights, spotlights, light bulb, straight tube, flat lights, street lamps, garden lights, tunnel lights, eight series. Among them, the interior lighting energy than traditional light sources 50% -80%, outdoor lighting energy than traditional light sources 50% of the product life of 30,000 hours. Meanwhile, the integration of networking technology products, and fully reflects the LED chip adjustable, controllable, colorful features.
At present, the wave of Linyi optoelectronic industry base has been the National Development and Reform Commission Energy Center awarded the "China Green Lights education demonstration base" to become the third country to be awarded the title company will actively promote the popularization of energy-saving awareness, to vigorously promote energy conservation education .
Wave with the global leader in the field of LED lighting Cree signed a strategic cooperation agreement in the future use of their technological advantages, to develop new LED lighting products and solutions. Completion of the new production base, marking the wave of semiconductor lighting and downstream industry chain and completed basic, industry-wide scale operations to achieve substantial breakthroughs.

Upgrade to the power LED industry, green building

Energy saving LED lighting industry as an emerging industry, has been well received national attention, semiconductor lighting "second five" forthcoming in September. At the same time as the introduction of national standards LED products, LED products this year is likely to include some enjoy the financial subsidy, industrial lighting, commercial lighting may be a wide range of start. LED in all aspects of the application showed a rapid growth momentum, market research organizations LED Inside pointed out that the 1000 lumens of LED lighting for every price costs about 7-10 U.S. dollars, as costs continue to decline, from 2011 to 2012, LED lighting market will accelerate growth.
At present, China has become the world's second largest country in LEED certification, LEED-certified project application at an annual rate of 20% increase. Represented by the green LED lighting development of China's green building and an important impetus for the development of the system. Philips to provide office space for China's LED light
solutions, from the light source, lighting and intelligent control system fully in practice on the green concept. Meanwhile, the use of construction itself, and the use of natural light to the limit, with high quality LED lighting, so that the illumination can fully meet the work requirements of the case, and the maximum reduction in lighting power consumption, final achieve the project's energy consumption is minimized. Jiangsu Taicang Interface Flor construction projects, high-quality lighting solutions for Philips advanced building energy-saving lighting technology opens a new era of transformation. Interface as the world's largest carpet manufacturer, China as an important strategic market, lighting standards required to achieve LEEDGOLD requirements. For such a request, Philips designers introduced advanced dynamic lighting technology, balanced environment to improve the lighting, design lighting solutions for professional office use up and down the light of Philips TBS498, the lamps in the window Installation luxsense used for solar control. INTERFACE FLOR's Branch of the Centre as a zero-carbon used in Philips Lighting's new office building sample. The responsible person said, from the LED device R & D to design detail, as appropriate, "people first" principle, to the green building market in China continues to lead.
Greater China General Manager Mr. Liang Hanfeng Philips Lighting, said, "As China's green building user awareness and the development of standards, Philips Lighting is willing to promote China's green LED lighting in the quality and quantity of new dimensions to breakthrough. "

Japan's emphasis on safety and LED lighting performance standards

LED lighting in Japan for the Asian region to implement the results of the most significant countries, especially after the 311 earthquake energy awareness is high, bulb type LED light sales ratio has risen sharply, to June 2011 for the first time more than incandescent bulbs, as the proportion of sales in Japan market the highest power dome lighting.
Japan to promote LED lighting remarkable achievements, in addition to energy-saving awareness, but also be attributed to the Japanese power industry will be headed the ball a body corporate, to develop the LED lighting, security, performance and interchangeability and other specifications, so that when manufacturers in the production have to follow the norms, but also enables consumers to buy peace of mind.
Japan's current LED lighting standards, mainly the Japanese Industrial Standard JIS and Japanese power ball industry will JEL specifications into two categories. Of July 2011, Japan has developed JISLED total of six light-related specifications, under development, there are one, mainly related to the LED lighting module and the LED light bulb type safety and performance requirements of the matter, as LED road lighting, there were no national standards, only local governments to formulate their own specifications.
The Japanese electric industry will develop ball-related specifications of LED lighting, there are four main defining and marking the form of LED lighting and LED lighting and conventional lighting system between the mouth of gold and compatibility. LED lighting for the weight, the circuit is different from the traditional lighting system requirements etc, if the development of compatible specifications in the use of LED lighting could easily lead to damage to itself, even heat, fire and other hazards.
Japanese LED lighting-related specifications, the main reference to international standards IEC to develop these standards in a variety of LED lighting environment, safety and play with color, brightness, life, etc., excluding security and performance below the standard of LED lighting products to completely replace traditional incandescent light bulbs lighting the target.

LED lighting market potential analysis

Today, LED lighting has surely become a mainstream technology. The technology is becoming more mature, one of the symbols is the large number of LED lighting standards and norms have been put forward. Stringent efficiency requirements already exist for quite some time and will continue rising. But Recently, LED lighting designer's work is more difficult, because to meet two requirements: both use dimmers for incandescent dimming control to achieve, but also to achieve high power factor performance for LED brightness adjustment, currently divided into analog dimming and PWM dimming, the following will be LED dimming of the relevant circumstances described. With the LED application market continues rapid growth, the continued expansion of the scope of application has led to the continuous improvement of product requirements, the LED terminal products in the LED brightness adjustment on this feature also appears to be very necessary. Also present, such as LED lamps and displays, etc. must focus on the link.
Dimming lighting systems are very common features. For the incandescent lamp, it can be easily achieved at low cost. LED lights dimming, but there are some difficulties, but for architects and residential users, the transition to LED lighting, dimming may not want to lose control should have advantages. This involves many types of LED lighting knowledge.
Power factor is a very important factor, because of the high power factor can reduce the loss of distribution network. Reduce electricity use on the environment impact of the most effective way to reduce waste, the regulatory agencies around the world are further efforts to strictly regulate their power factor. One example is the solid-state lighting Energy Star energy efficiency standards (09/12/07), which provides residential lighting products, power factor (PF) should be greater than 0.7, the commercial lighting products, power factor (PF) should be greater than 0.9.
LED lamps dimming most common, there are three, three dimming RGB LED light current skills are based on the change of the input dimming. According to different circuit system can be divided into imitation dimming and PWM dimming.
The first: This dimming method is by modulating the LED drive current to complete the LED lights dimming, the brightness of the LED chip and the LED drive current into a certain proportion of stakeholders, so we can adjust the LED drive current control LED lights light and dark.
The second: This dimming method is called pulse width modulation (PWM). The method is to adjust the drive current was through the square wave, the variable pulse width, pulse width modulation through the change of the modulated LED light continuously lit for the time, also change the input power to reach the energy saving, dimming goals. Frequency as usual at about 200Hz ~ 10KHz; because the human eye visual lag, do not feel in the dimming light generated in the process of shining phenomenon. This method has the advantage of dimming LED cooling can improve performance, defect-driven current overshoot the life of the LED chip must have some impact on China's lighting of the town of "Yuyao region rely on the local industrial advantages lighting company, fully leveraging" energy saving "www.jiek025.com characteristics, product design and development played the" Energy "brand, continued application of new energy saving technologies to develop products to meet market demand, according to statistics, the first export of energy-saving lamps, Yuyao April 2230 batch , the value of $ 50,060,000, up respectively 32.5% and 18.4%, ....
Third: This method is called to imitate dimming dimming dimming method or linear method. The kind of dimming method has the advantage: when the drive current linear growth or decreases, reducing the drive current overshoot during the life of the LED chip, and the dimming circuit of strong anti-nuisance. The flaw is the size of the drive current process of change is certainly the color temperature of LED chips have a certain impact.

Three reasons for expensive LED lighting

The prospects for the current, LED lights for the average consumer price is still too expensive, difficult to consumption since. According to industry analysts, LED lighting is expensive, mainly in the following areas.
First, LED products, thermal difficult. So this feature, so manufacturers in the production of LED products, they tend to spend a certain amount of cost in the production of parts on the radiator. Therefore, to reduce the price of LED products that can reduce cooling costs in this regard from the start.
Second, because power is the weakest link in LED products, LED products, which accounted for 20% of all costs, so if the power LED application manufacturers to improve the quality of management devices, power management, cost control about 5% -10%, so to a large extent, reduce the cost of LED products cost.
Finally, the domestic LED industry is not their core technology. Many high-end LED technology in the hands of European and American countries, researchers, therefore, the domestic LED products are just products occupy a minimum share of profits. Because with the continuous development of LED chips and development of its extensive use of the overall cost of LED products will fall, but the present, the number of LED chips using imported technology, resulting in cost is very costly.

LED lighting-to-date security standards

Currently on the market a wide range of energy-saving lamps, and more technologically advanced and more environmentally friendly to calculate the energy-saving LED lights. Data display, LED energy-saving 80% energy saving than incandescent lamps, fluorescent energy-saving lamps over 50%. LED lamps are energy saving, environmental protection advantages in lighting industry has become a major trend. The obvious advantage of energy-saving LED lamps can be reflected from the following aspects:
1 low-power, low power consumption: In general, LED display operating voltage is 2 to 3.6V, operating current is 0.02 to 0.03A. That is to say: it does not exceed power consumption of 0.1W;
2 Small: LED energy-saving lamps is basically a small chip is encapsulated in epoxy;
3 long life: the right current and voltage, up to 100,000 hours of their life, almost no maintenance. In addition, LED energy saving lamps are completely epoxy resin, it is more than light bulbs and fluorescent tubes are strong, light body and no loose parts, easy to damage;
4 high-brightness, low-calorie: ordinary incandescent and halogen lighting, although cheap, but the light efficiency is low, due to the thermal effect of light and vain power; LED lamps as lighting lamps, not only high luminous efficiency, and cold produce almost no heat source power;
5 Green: RGB LED light are made by the non-toxic materials, unlike fluorescent lamps containing mercury can cause pollution, but also can be recycled;
6.LED also has energy-saving lamps flicker, applicability, high stability, short response time, etc.;
As LED technology and products used by traditional lamps with different properties have been, so the current safety standards of general lighting is obviously not applicable. In this note about the current safety testing LED lighting requirements (to UL standards, for example).

LED street lamp market's future depends on the reliability issue is resolved

Government are currently carrying out most of the world lighting upgrade, the first step is to install LED lights in the new development area, then, LED light will replace the existing old street lighting. According to expect in the next five years, today most of the lights are LED lighting will be replaced.
However, LED lights are facing a big problem is the low reliability because it is mainly used for outdoor lighting, face a variety of extreme environmental conditions, such as long withstand sun and rain, thunder and lightning, temperature changes may be more so. LED lights to be recognized by the market and large-scale use, we must first solve the reliability issues.
TI Semiconductor Division Business Development Manager Liu Chao
TI High Performance Analog Semiconductor Division, Business Development Manager, Dr. Liu Xuechao, said: "LED street lamp market prospect, but must address reliability issues."
LED lights is an optical, thermal and electronics components of complex systems, although a longer LED life of its own, but if poorly designed LED driver circuit, such as the use of low-quality active or passive devices, and the overall life of the drive circuit not match with the LED, LED lights will affect the quality and life.
Furthermore, LED thermal management and heat dissipation is also very important, once the temperature higher than 100 ℃, LED itself, the reliability will be affected. Of course, LED early failure, and transient assembly of local defects and other factors, also led to the LED may fail occasionally, if not take appropriate protective measures diversion, a single LED failure will lead to a whole string of LED does not affect the overall effect of street lighting .
Liu Chao stressed that: "LED lamp is a complex system design, involving light, electricity, heat, mechanical and other fields. Mainly on the drive power in terms of efficiency and reliability problems. First, the driver power supply temperature is high (usually 70 degrees up and down), this way, I hope to drive power efficiency (including the constant voltage with constant current) efficiency reaches a certain height (eg> 90%), reducing the drive power of the temperature, increase reliability, and secondly, the traditional driver topology is more complex, including the PFC, PWM isolation and constant current DC / DC three circuits (see below), components and more, low reliability, especially electrolytic capacitors and opto-sensitive devices. "
Thus, in the process of designing LED bulbs, LED temperature must be well taken into account management or cooling problem, the LED operating temperature remains below its junction temperature (maximum junction temperature of 150 ℃), is generally recommended to be less than the LED operating temperature 100 ℃, avoid affected the reliability of the LED. In addition, LED spotlight circuit designer must carefully choose the circuit in the active or passive devices, to ensure match with LED life. For example, designers should avoid the use of electrolytic capacitors as much as possible, because the capacitor under the conditions in long-term use may cause leakage and result in shortened life expectancy.
Furthermore, LED lighting market in the overall, LED lights are all LED lighting applications the highest power, and therefore require multiple power levels and complex topology to meet the power factor correction (PFC), total harmonic distortion (THD) , 85 PLUS efficiency and other standards and regulations, and multi-string LED current constant demand.
Liu Chao also said: "To solve the problem of circuit reliability of LED lights, drive topology must improve, improve efficiency, reduce component count, while also further reducing costs."

LED lights light failure problems

Now, some businesses, in order to reduce costs, on the use of hundreds of φ5 small power LED. However, this low-power LED light is a very serious decline, according to the light fades to 80% of the life span of only 1,000 hours. Therefore, as a necessary long-term use of LED bulb is absolutely not allowed to use such small power LED. As a high-power LED, the light fades would be much better. However, many domestic manufacturers still only be 10,000 hours decreased by 10%. Can not meet the requirements.
In fact, LED problem is due to the long life of work at high temperatures and formation.
When the junction temperature from 115 ℃ to 135 ℃, it will make the life expectancy from 50,000 hours to 20,000 hours. At present, the LED luminous efficiency has not increased to a high level, can only try to improve its heat to extend the car LED life.
Using a loop heat pipe cooling technology can put LED's junction temperature cools to 65 ℃, which greatly improves the service life of LED lamps. After three years of their actual test showed that working 12 hours a day, less than 3% of its lumen. Expected to work a decade later, only 20% of its lumen. This basically solved the problem of life.

What is a light-emitting diode (LED bulbs)?

To bring light, people immediately think of those colorful variety of lighting fixtures store. Although these lamps of various shapes, but the lighting of the main core of the --- in fact, only two light bulbs: incandescent and fluorescent lamps.

However, this situation will change soon, because the lighting of the star --- LED bulbs are to the practical stage. LED was invented in the 1960s, in the ensuing decades, its basic use is as tape recorders and other electronic equipment lights. To maximize the potential of LED lighting, recently, scientists have developed a new type of light-emitting diodes for lighting lamps. This bulb has a high efficiency, long life, continuous use 10 million hours longer than ordinary incandescent bulbs 100 times. It is estimated that, worldwide, LED bulbs 90 billion pounds of market prospects. In the huge business opportunities to attract, some bulbs such as Philips and other manufacturers have started to invest hundreds of pounds, research and development of household LED bulb. Scientists predict that in the next five years, this bulb is likely to become the mainstream of the next generation of lighting products. As we all know, since the American inventor Thomas Edison invented the incandescent lamp has 100 years, people still used the basic technology to produce Edison's incandescent light bulbs. Light bulb in the middle is a piece of tungsten wire, when the current through tungsten filament light bulb to heat activate the gas glow. However, LED light bulbs in terms of structure or in the light principle, with the traditional incandescent lamp is essentially different. Light-emitting diode is composed of several thin layers of doped semiconductor material, a layer with the excess electron, due to lack of electrons to form another layer of positively charged "hole", when a current is passed, the electron and hole combined with each other and release energy, which radiates light. For a long time, why people did not LEDs used for lighting, mainly because usually only red light-emitting diode light or yellow light, in order to obtain white light, must also be manufactured that emits blue light-emitting diodes. In this way, red, yellow, and blue light "hybrid", you produce white light. Now, the trouble has finally been solved people's problems. Scientists have discovered a new type of gallium nitride semiconductor material --- it can be treated properly in blue. Blue light is resolved, the questions have been made white hope. University of Cambridge Department of Materials Science of Colin John Humphreys said they have developed in the experiment can be made white LED street light, this light bulb is very close with the sun, with good prospects. He said the light-emitting diode bulbs on a semiconductor material, so that a small light-emitting device can do, and only a few millimeters, to be installed in the wall or ceiling, if you do not turn on the lights, hardly notice their existence, so it eliminates the incandescent lamp to prevent light to be coupled with barbed eye trouble. In addition, the bulb life is very long, after the placement of almost no change, in the future people may forget how changing light bulbs is one thing. Currently, he is calling on the British Government to increase investment in order to ensure the UK in the forefront of this technology. In addition to durability, this kind of energy-saving light bulb in there is great potential. It is calculated that if half of the U.S. light bulb in use LED bulbs, you can shut down 24 power plants, saving billions of dollars, carbon dioxide emissions will be decreased. For this reason, the U.S. has plans to 2006, all the traffic lights use LED light display, so that each intersection can save $ 750 per year. Despite the many advantages of this lamp, but really into ordinary families also face two major obstacles. First, the price is too high, and now the price of each bulb is 30 pounds, while only 35 pence ordinary incandescent bulbs, the gap is too large. Second, it is hard to produce white light suitable for home use hair bulb. But the developers believe that the price of this lamp can be reduced in the next five years, each 5 pounds. By then, the LED bulbs will light from the traditional electronics emerged as the lighting of the star.

LED light can be accessed by broadband network

LED lamps, LED display, LED downlight as an energy saving has gradually come into our lives. Reporters learned from the Institute of Semiconductors, Chinese Academy of Sciences, the Institute for the study of semiconductor lighting information network has made a major breakthrough, the lamp can be wireless Internet access a reality.

LED lamps, LED display, LED lights as an energy saving has gradually come into our lives. However, the light emitted by the LED can be connected to broadband networks, which in the current scientific research has become a reality.
Reporters learned from the Institute of Semiconductors, Chinese Academy of Sciences, the Institute for the study of semiconductor lighting information network has made a major breakthrough, the lamp can be wireless Internet access a reality.
A laptop computer placed under light exposure, there is no cable connection, no wireless card, but the smooth playback of online video is still happening today ... ... This is the Institute of Semiconductors of semiconductor lighting and museum information model scene. Its secret lies in the ceiling blue LED lights. Network signal is transmitted to the computer through the light. In this way, the current maximum transmission rate of the Internet can reach 2 trillion per second. In addition to connect to the network outside, LED tube also serve as the commander of a variety of household appliances. The Institute's Dr. Chen Xiongbin, at present they have to achieve a variety of electrical switches and adjustable controls.

LED lighting safety requirements

LED energy-saving and environmental protection advantages in lighting industry has become a major trend. As LED technology and products used by traditional lamps with different properties have been, so the current safety standards of general lighting is obviously not applicable. To help the industry address this issue, this issue will be LED lighting technology used, the scope of possible applications, and the current UL safety assessment used to this explanation.
LED lighting technology and features
The so-called LED tube, by definition, refers to lighting products use LED (Light-emitting Diode, light emitting diode) technology to do the main
White LED lamps (16)

To the light source. LED is a solid-state semiconductor components, the use of forward flow of current to the coupling at semiconductor pn junction, and then isolated from the semiconductor with the negatively charged electrons and positively charged holes two kinds of carriers combined, the resulting photon emission, different types of LED panel light can be sent from the infrared to blue between, and among the violet to ultraviolet light of different wavelengths. In recent years, new development is in the blue LED coated with phosphor, the blue LED into white light LED products. The operation usually takes with a drive circuit (LED Driver) or power supply (Power Supply), the drive circuit or power supply's main function is to convert AC voltage to DC power, and simultaneously consistent with the LED voltage and current to drive the matching components.
LED lamps light bulbs, small size, light weight, and epoxy resin, mechanical strength to withstand high shock and vibration, not broken, and the brightness decay cycle is long, so its life of up to 50,000-100,000 hours, far more than the traditional 1,000 hours of incandescent light bulbs and fluorescent lamps 10,000 hours. Because LED light use up to 5 years to 10 years, so not only can significantly reduce lamp replacement costs, but also because of its very small current to drive light-emitting characteristics, in the same lighting effect of the case, power consumption, only firefly the half light the lamp, the LED also has a power and energy saving advantages. But because part of the LED technology is still inadequate, so at first light on the shortcomings of using the included light quality (color rendering, consistency, color temperature) is poor, heat is not easy, and the price is too high, improper cooling of which will be the brightness of the LED lamp life of components and circuit to accelerate decay. With the rapid advances in manufacturing technology in the last decade, these shortcomings, including LED thermal resistance decreases, the quality is also improved in the light. In 2008, in addition to cold white LED luminous efficiency has reached 100 Lm / W, while LED lamp warm white light-emitting efficiency is expected in 2010, also available from the current 70 Lm / W increased to 100 Lm / W. Compared to other general-purpose light source with the current, incandescent light bulbs about 15 Lm / W, fluorescent lamp of about 45 ~ 60 Lm / W, HID lights about 120 ~ 150 Lm / W, LED luminous efficiency is clearly an edge gradually

LED light source characteristics

1. Voltage: LED with low power supply voltage between 6-24V, vary according to product, so it is a high-pressure than
(2) Performance: consumption of energy-efficient than incandescent light with 80% reduction
3 Applicability: small, small piece of each LED bulbs

is 3-5mm square, it can be prepared into various shapes of devices, and for the environment variable
4 Stability: 100,000 hours, the light fades to 50% of the initial
5 Response time: the incandescent millisecond response time, outdoor LED display nanosecond response time
6 of environmental pollution: no harmful metal mercury
7 Color: can change the current color, light-emitting diodes by chemical modification methods, adjust the material band structure and band gap, to achieve multi-color light orange red Huanglv Lan. Such as the small current when the red LED, as the current increases, you can turn to orange, yellow, and finally to green
8 Price: LED light is not expensive
9. Drive: LED can be driven with low voltage DC, with the load is small, the advantages of weak interference, the use of low environmental requirements
10 high color: LED of high color, will not cause harm to the human eye

LED History

It has been about 50 years ago, the semiconductor material can produce light of the basic knowledge, the first commercially available diodes in 1960. The core part of the light-emitting diodes by p-type semiconductor and n-type semiconductor chip formed in the p-type semiconductor and n-type semiconductor between a transition layer, called the pn junction

In some semiconductor materials, PN junction, the injection of minority carrier and majority carrier recombination, when will the excess energy released in the form of light, which convert light energy directly into electrical energy. PN junction reverse voltage, minority carrier injection is difficult, it is not light. This use of injection electroluminescent diodes called the principle of making light emitting diodes, commonly known as LED. When it is in working state (ie, ends with a positive voltage), current from the LED anode to the cathode, the semiconductor crystals from the ultraviolet to infrared light of different colors, light intensity and current. High efficiency, low-light decay power pallet truck, widely used in street lamps, mining lamps, tunnel lights, spotlights, fluorescent lighting and many other fields, by the industry alike.
1. Using solid-state light-emitting semiconductor device chip package efficient self, 1W to 3W fluorescent light can reach the effect of normal, saving 60% electricity, has a good lumen performance, high temperature resistant plastic material refined pc.
2 lower vf value (3.1v-3.5v), can reduce the power dissipation to reduce heat and prolong the working hours of LED.
3 using original epoxy resin technology to emit energy in electronic form, are white and warm white lumens can be done about the products without spot color circle, color high consistency.
4 lens through special approach to ensure that will not fall.
5 Uses
LED bulb, LED light shooting. LED strip, led lighting lamp power 60W 80W 120W 160W 180W LED decorative light LED lighting LED lamp LED light lamp LED lighting, LED stage light.

Benefits of LED lights LED lights have many advantages

Into the field of LED light, lighting technology is a revolutionary leap. The development of LED lighting for the historic contribution of green, no less favorable than the high wire to the transistor from the era of vacuum tube era leap, even if the evaluation of large scale integrated circuit as the transistor to the changes across the same, and no exaggeration.

In landscape lighting, LED has a more unique advantages, can be sure, LED landscape lighting along the avenue of interdisciplinary integration, toward the artistic, intelligent, flexible in the direction of rapid development. LED is pregnant with opportunities.
In addition to mercury-free LED downlight source, energy, materials, electromagnetic interference-free environment, without harmful rays five advantages, in the lighting field, particularly in landscape lighting, there are many advantages. Such as: low-voltage power supply - no high-pressure part, much less to the cost of insulation, high reliability; accessories simple - no starter, ballast, or EHV transformers; simple structure - the biggest advantage with a solid light not inflated, no glass case, no gas sealing problems, impact resistance; controllable - fast response time (microseconds of magnitude) can be repeated frequently light off, almost no inertia, not tired; color simple and honest - - self-generated by the semiconductor PN junction color, pure, strong; rich colors - the three primary colors plus digital technology, the evolution of any color; lightweight structures - and materials, cost savings; strength and stiffness requirements for low lighting; - compact large LED lamp can be seen as cells from the LED, the LED is only the smallest magnitude square millimeters or less; flexible is good - LED compact light source, the LED can adapt to a variety of different geometric dimensions and space decoration lighting requirements, such as: point, line, surface, ball, different forms, as well as any art form of the light sculpture.

What are the advantages compared to LED lights and general lighting, etc.

LED (Light Emitting Diode, the Chinese meaning of light-emitting diode) is a way to convert electrical energy into visible light semiconductor, it changes the energy-saving lamps and incandescent tungsten light emitting three basic principles of dye, while the use of electric light. Very obvious characteristics of LED, long life, high luminous efficiency, no radiation and low energy consumption. Two years ago on a low power LED bulb, extraordinary life has been widely applied to the signal indication, digital display and other weak areas, and now the successful development of ultra-bright LED, making it more and more used in the decorative lights, even lighting.

Energy-saving lamps can save energy 4 / 5, but also energy saving lamp LED than 1 / 4, this is solid light source greater reform. In addition, LED also has other advantages, light, high quality, almost no radiation, typical of the green lighting; reliable and durable, very low maintenance costs and so on. Because more than other solid LED light source also has unmatched features, 10 years after the LED lighting industry will be the main source.
Currently, U.S. companies should be independently developed to market high-quality cost-effective LED products are: (1) LED light module, a solid light, illuminated signs of the new light source can completely replace traditional neon and other light sources; (2) LED diode lights, contour lights, standard lamps within the light through the outside; (3) LED decorative light bulbs, lamp cup, PAR lamps, standard lamps mouth, easy to replace traditional light sources; (4) a variety of car decoration light.

LED lamp market prospects

As development and production of LED driver, one of general manager Yang Huaren told skywave electronic, semiconductor light source energy, long life, safety, environmental protection, anti-flickering, color variety, easy to control and many other advantages, will replace the traditional lighting industry, lighting lead another revolution.

As the luminous efficiency and cost reasons, LED energy saving lamps is not yet in large white flood lighting and traditional light sources and efficient competition, but in low-power lighting, partial lighting, security lighting and other aspects, advantages over traditional light sources is difficult .
Yang Huaren, said the street lamps, for example, the main street in order to illuminate the road, belonging to local lighting. Now, being useful to explore their business, so that LED energy saving lamps gradually practical.
As for the technical requirements, Yang Huaren said that to make energy-saving LED lights, first of all to a reasonable selection of LED. In general, do energy-saving LED light display, you can use both low-power LED, you can also use high-power LED. However, the proven low-power LED light-emitting devices despite the advantages of low cost, but its light fades faster than high-power LED, and a few too many with the tube, the assembly of trouble, into account, selection of high-power LED more reasonable.
Yang Huaren told the author, LED energy saving lamps compared with conventional lamps, has several advantages, first, small size, LED is basically a small chip is encapsulated in epoxy, so it is very small, very light. Second, low power consumption LED's operating voltage is generally 2-3.6V. Operating current is 0.02-0.03A. That is, it does not exceed power consumption of 0.1W. Third, long life, the right current and voltage, LED life of up to 100,000 hours. There is environmental protection, LED is non-toxic materials, unlike fluorescent lamps containing mercury can cause pollution, while LED can also be recycled. Another is the high brightness, low heat and rugged.
Above, LED energy saving lamps in line with current government policies to promote energy saving and environmental protection, so it seems, LED tube is a bright prospect, I believe that in the near future, consumers will be accepted into the civilian population at home.