作者：Blade

rgb led downlight and balance point

Since the sixties of the last century, the first commercially available LED lights market, LED lighting industry has been applied 40 years of industry on the middle and lower reaches has formed a relatively complete industrial chain, LED is used in increasingly more industry, this article from the following four aspects to the macro described the advantages of LED lighting compared to other light sources in the significance of indoor applications, LED light source in the development and promotion of the range of applications in the field of indoor lighting, and LED interior lighting products direction.

rgb led downlight and balance point

In the field of indoor lighting, the main applications of traditional light sources in general, including incandescent, halogen, fluorescent lamps, PAR lamps, metal halide lamp. This type of light source power consumption of a single color and control, and light thermal radiation, in some special places by certain limitations. The LED light source has a full color easy to control, energy saving and environmental protection advantages, to create a light environment can not be replaced by other conventional light sources, high-quality, fully meet the market demand for upscale interiors, mood lighting and lighting design to the interior space of the new way of thinking. In particular, the emergence of high-power LED LED lighting in the field of interior lighting find a breakthrough to accelerate the application of LED in the field of interior lighting.

When it comes to LED applications, I can not talk about some of the advantages of LEDs compared to conventional light sources. These advantages, it is the LED mood lighting of indoor commercial area of ​​application of thin flat point.

LED green lighting products, known as the 21st century is now virtually the entire world’s eyes are focused on this new type of light source, compared with conventional light sources, has incomparable advantages:

1, high purity, bright rich colors. LED products covering almost the entire visible spectral range, and high color purity. The traditional way is to get the color of light to incandescent lamp and filters greatly reduce the luminous efficiency;

2, and long life. The actual LED life over 50,000 hours, or even several times for general light source several times;

3, light source, no mercury, no ultraviolet beam. The LED is a solid light source, green, especially suitable for professional place for perfume shops, jewelry stores, museums, art galleries, which can meet the special requirements of the lighting of the display of goods;

4, light-emitting solid, good seismic performance, solid and reliable;

5, energy saving, economical, maintenance-free;

6, the dynamic color control, brightness adjustable LED combination of the three primary colors can be used PWM to achieve a change in color

7, LED strong light direction, the luminous flux of high utilization, small size, easy-to-LED lighting design and control of light intensity distribution;

LED can be DC low voltage power supply, safe and reliable;

9, LED is not a start-up temperature limit can be instant start, generally a few ms, and can reach instantaneous full luminous flux output.

Then talk about the applications of LED indoor lighting project;

rgb led flashlight and Xenon lamp

White LED Driver drive power limited xenon lamp flash to illuminate the shooting scene provides a cost-effective choice. This article describes the basic concept of xenon lamp, and the details of a typical low-power based on the ON Semiconductor NCP5007 chip, low-cost flash drive circuit design.

rgb led flashlight and Xenon lamp

Digital camera and is equipped with camera phones have new product into a mainstream product, these products within the digital image sensor based on CCD or CMOS technology. Able to support the image sensor in low light conditions, the flash circuit became necessary solutions for digital cameras, camera phones are becoming more common. Satisfy the flash requirements of the main light source is a xenon bulb and now the new high-brightness white LED lights.

The main advantage of the xenon lamp flash pulse generated by high power light output, while the advantages of the LED program is a relatively small size and thin, and longer conduction time in the video capture, the light output with the xenon lamp is only average compared. In particular, the xenon lamp flash pulse is very short, to enable the camera to capture photos made into a static picture. They need a special drive to produce high pressure and high energy storage capacitor to store electrical energy.

We found that the white LED panel driver to drive power limited xenon lamp flash to illuminate the shooting scene provides a cost-effective choice. This article describes the basic concepts of the xenon lamp, and details a typical low power / low-cost flash applications.

The xenon lamp has a glass enclosure at each end of an electrode, filled with low pressure rare gas mixtures. In the steady state, as shown in Figure 1, the voltage on the electrode is set lower than the trigger voltage. At this point, no current flows through, and the system remained stable until the trigger voltage applied to the third electrode. For the considered low-power light, this high-voltage pulse in the 1kV range, it comes with a small core transformer by a sudden discharge of the capacitor C2 is triggered.

The gas mixture is excited by plasma flash. For consumer applications, flash duration is 2ms. Flash type, the energy stored in the capacitor C1 can be as low as 1 joule (small camera), up to several thousand joules (professional application). Flash energy consumption shown in Equation 1:
Depending on the type of xenon lamp, the capacitor charging voltage is basically for 160V to 600V. The energy of low-power hand-held camera needs no more than a few joules, and the output voltage range of 160 to 250V. Higher voltages can be seen generally in a professional studio equipment used.
In addition to the DC voltage, high voltage pulse to excite the plasma in the bulb, high-intensity arc generated between both ends of the electrodes. Pulse amplitude depends on the type of lamp used in the system, ranging from lower 1.6kV to 10kV. Micro-xenon lamp is applied to the third external electrode of the lamp 1.6kV/5μs pulse triggers the pulse shown in Figure 2 for pulse transformer and high voltage capacitor connected arising. Charge the capacitor to the flash dc voltage (200V), and suddenly after the trigger button S1 to the pulse transformer primary side discharge. From the secondary side of high pressure is applied to the outer surface on the bulb, the flash is excited.
The main advantage of this concept is the light output and pulse duration is very short, quick photographs moving subject frozen at some point. The disadvantage of this design is the size of the storage capacitor, you need to board a higher voltage, and during filming capacitors need to be recharged (consumer applications, the charging time of 5-10 seconds).
According to the sensitivity of the imager and lens aperture in the general environment for consumer applications, a relatively small capacitance is sufficient to photograph in bright pictures. Therefore, you can use a simple converter to the battery voltage up to 200V voltage of the low-pressure xenon lamp required.

rgb led flood lights and white led driver

 

General white LED current is about 20mA, but the high brightness LED 200 to 300mA current. If your product requires three to four high-brightness white LED; brightness average general practice is to string them connected together. On the market, most of the white LED driver chip can only drive 20mA. Hit a series high current LED applications will have to think of other ways. Intersil’s EL7516 is a typical step-up chip. This chip operates at 1.2MHz fixed-frequency PWM mode, built-in 1.5A, 200mΩ MOSFETs. Figure 1 shows the EL7516 a typical circuit. DC-DC boost the role of EL7516 will be 2.7 ~ 5.5V input into a constant voltage of 12V. General PWM control chip, the FB pin is connected to the error amplifier is compared with 1.3V. R1, R2 resistor value is selected to set the output voltage.

With the development of white LED lights, it’s more widely applied. In the past, the white LED is the most common application is as a small-size color LCD backlight. White LED brightness increase, its application has spread to other areas; such as a flashlight or cell phone camera auxiliary lighting. The following describes a general boost chip to drive high current LEDs efficient circuit.

EL7516 lines of constant pressure to change the drive LED constant current circuit is very simple. Shown in Figure 2, the FB pin of R1 replaced by LED grow lights, change R2 can adjust the current through the LED. R2 values ​​selected from the following formula: R2 = VFB / IledVFB FB pin voltage; that 1.3VIled is the current through the LED

For example, if the requirements of Iled 300mA; then R2 needs to 4.3Ω.

On the circuit of Figure 3, the biggest drawback is the loss of R2. R2 by 300mA, the resistance of the power consumption is close to 0.39W. Such a great power not only affect the efficiency, we also need to use the relatively large size of the resistance to accept 0.39W heat. In general, these applications are battery powered. Efficiency and line PCB space requirements are more stringent, now let us look at how to improve the efficiency of this line.

egardless of the circuit changes how EL7516 will adjust the duty cycle so that the FB voltage to maintain 1.3V. The assumption D1 positive voltage drop is 0.6V, the voltage drop across R2 is about 0.7V. To maintain a 300mA LED current, R2 can be used to 2.3Ω. R2 power consumption also dropped from the original 0.39W 0.21W. Although the power consumption has been reduced, but R2 have to use a half-watt resistor to achieve this line.

rgb led flood lights and white led driver

A cheap TL431 added to the circuit as a 2.5V reference. As mentioned earlier, the EL7516 will remain FB 1.3V, the current through R4 is: (2.5-1.3) / 20k = 60uA. FB is a high-impedance pins, we assume that this 60? A full inflow of R5 and made the same 1.2V voltage drop. 0.1V, the rest of the R2 to complete. In order to facilitate the purchase, R2 is selected as 0.39Ω. So the current through the LED tube is about: 0.1/0.39 = 255mA. R2, power consumption is significantly reduced to: 0.1X0.255 = 26mW.

rgb led high power and led car use

The basic use of the controller reduces the cost of the car displays, signal and lighting electronic equipment. Switch adjustment circuit in the highest efficiency light LED to control the brightness of the lights.

Recently, LED tube has been replaced by low-voltage halogen technology, widely used in the car for general lighting. Design engineers have long life and low operating DC voltage LED lighting two advantages quickly gave approval.

On the other hand, in order to make these new LED technology to develop, you need to use more complex, more expensive vehicle electronic control system. The emergence of new ultra low-end 8-bit microcontroller (MCU), allowing design engineers can significantly reduce the cost and complexity of the system, use this alternative lighting solutions to be able to be profitable.

Due to the use of low-end MCU, high-brightness LED tunnel (HBLED) has developed many new applications, to continue to attract more users. New input, the HBLED including: monitor, car signs, lights, mobile devices and lighting equipment.

Overall, the LED has a nonlinear volt-ampere characteristic, the need for limiting the control of power consumption and light output of these two important factors. Power consumption and light output depends on the current drive the HBLED the ideal power is the constant current source. The high brightness LED lights, standard LED in its output power. Traditional LED output power is typically limited to below 50mW, but HBLED is able to provide 1-5W of output power.

Want to get the constant current source in many different ways, such as the use of series resistors, linear current source or switching regulator. The use of the switching regulator is the most common energy-saving solution. Switching regulator to cut off the input voltage, the duty cycle to control the average current, in order to achieve its current control – when the load requires a higher load current, the circuit connected to the time extension to fit the load current changes .

The HBLED the current is generated by the average power stored in the inductor L within. Switch is closed, the inductor will store energy as much as possible, the current flowing through the HBLED will be enhanced until it reaches the maximum or switch off. Then, when the switch is turned off, the energy stored in the inductor will provide HBLED current. This current will gradually weaken until you reach the minimum or switch is again closed.

rgb led high power and led car use

Current control to solve the problem becomes very simple, based on the the HBLED above the MCU controller dimming. Right the HBLED to implement dimming There are many different techniques, some of which may include the patent issues. Under any conditions, the dimmer on the same basis, namely: fully open in the HBLED the normal operating current HBLED period of time, and then completely to the continued closure of the period of time. Periodically at a faster rate to complete the action (the human eye can see) to give the impression HBLED light levels darken. The three techniques most commonly used are: pulse width modulation (PWM), frequency modulation and the bit angle modulation.

rgb led lamps and super bright led

Invented in the 1960s, it is the use of electrons and holes in semiconductor materials combined with each other and release energy, the energy band (Energy Gat,) rank changes, they release energy to light-emitting display. The LED has a small size, long life, low driving voltage, low power consumption, fast reaction rate, good shock resistance, it is widely used in the field of signal indicator, digital display. As technology continues to progress the development of ultra-bright LED has been successful, especially in the successful development of white LED lights, making it more and more used in the lantern decoration, and even the lighting in the area.

rgb led lamps and super bright led

l super bright LED features

Compared with the traditional lighting, ultra-bright LED has the following advantages:

1) long life, reliability and durability, very low maintenance costs LED can be used continuously 105h, 100 times longer than ordinary incandescent bulbs;

2) high-efficiency can already reach 201m / w. Expected by 2005 will reach 501m / W [1], the LED) the spectrum almost all concentrated in the visible light spectrum, and its luminous efficiency up to 80% ~ 90
%, LED energy-saving lamp energy saving but also 1/4;

3) color, light color simple example, 12 inches of red traffic lights, it uses low-efficiency 140W incandescent lamp as a light source, generated by 2000lm white The red filter, the light loss of 90%, leaving only under 2001m of red, 18 red LED light source lamp used in Lumileds Lighting Company, including circuit losses, consumes only 14W, and can produce the same luminous efficiency;

4) light speed fast car lights is an important area of ​​application of the LED light source, LED response speed (ns level), the high level LED brake lights, installed in the car can reduce rear-end accidents.

Bright LED in recent years has been in a car near light applications, such as the German Audi Audi A86.O, Italy Fioravanti concept car introduced at the 2003 Geneva Motor Show, the Yak, the U.S. Ford Motor Company recently at the Detroit Motor Show launched ModEL U are beginning to be bright LED used in the design of the headlamps.

Despite the ultra-bright LED has many advantages, but there are still the following shortcomings:

1) low power single LED tube market power generally in 5W following, not yet more high-power LED, which is the biggest bottleneck of LED difficult to become a lighting preferred;

2) the need to strictly control the temperature LED is a semiconductor material, with the diode as the PN junction diode highlight the power is relatively large, so the same with the power semiconductor devices, need to consider the problem of heat dissipation, junction temperature is too high will directly affect the LED life, and increased LED light decline in serious cases, the LED burned out;

3) the high price in addition to low power, the price is the main factor of the LED is difficult to become a lighting Although the LED has been most understanding, most people optimistic, but its high price is difficult to be accepted by consumers, the current single yellow LED about O. 6 yuan / month, green and blue single LED at about 1.8 yuan / the price of the white LED of about 2.2 to 5.5 yuan / month; dozens of single LED portfolio, the cost will greatly increase such as an LED installed in lawn lamp, the unit price is equivalent to general lawn several times, the LED to become a mainstream light source of lighting in the future, it must be moving in the direction of the large lumen, the cost of it be possible to reduce the market possible breakthrough.

Characteristics of the two super bright LED flood lights

HPWA-xH00 Lumileds Lighting Company, a super bright LED, it as an example the analysis of ultra-bright LED features. Figure 1 is the forward voltage drop (VF) and the forward current (IF) curve, the curve shows that when the forward voltage exceeds a certain threshold (about 2V), commonly referred to as the turn-on voltage can be approximated that , IF and VF is proportional to. Table 1 shows the electrical characteristics of the major super bright LED. Table 1 shows, the super bright LED’s highest IF up to 1A, VF is usually 3 ~~ 4V.

rgb led light bar and light solution

The initial resolution of the imaging device is quite limited, the image quality is poor. But as technology evolves, the resolution 300,000 pixel VGA grade progress to 100-2000000 pixels and quickly toward the more than 3 million pixels of resolution level forward. Continued improvement in imaging devices, processors and software, consumers now want to get more digital camera functions, such as the flash in low lighting conditions, even automatic focus. In this resolution, good quality output as well as pictures and video sharing becomes more practical, these higher-density CMOS imaging devices need to get more reflected light from the target, thus further promote the needs of the integrated flash function.

rgb led light bar and light solution

To the traditional Xenon flash placed into a fairly compact size of the phone challenging design engineers, because the thick flash high-voltage capacitors must also be coupled with the bulb and the associated transformers and electronic circuits, while the traditional The flash does not apply to the use of video capture. Fortunately, LED manufacturers have started to improve through the use of new materials such as indium gallium nitride (InGaN) and other power LED lights output.

On the other hand, semiconductor manufacturing technology innovation and package improvements can produce the number of lumens, and photoelectric conversion efficiency. To generate the highest light output, power LED requires 400mA or higher, and pulse width in the current output capacity from 50 to 200ms. However, for video applications, you need a smaller current, but time is not limited to a single pulse. In addition to size restrictions, and ergonomic considerations, these camera modules usually integrated in the rear or top of the screen, so that users can use the LCD as a viewfinder grab image, which is particularly common in the folding mobile phone. Imaging device and the lens bodies may also have to be able to rotate, so that the phone can be face-to-face communication tools as video conferencing mode, is expected to be more common in the design of the 3G network phone because there is enough bandwidth can be used in video conferencing.

Discussion of these trends can be clearly seen become more and more high quality and resolution of the screen display, while the size is also growing, in particular, is a feature-rich multimedia mobile phone is expected that the future will more and more more content such as streaming video or broadcast video, Internet browsing and e-mail, camera and photo viewing, as well as games and access to information services. Therefore, when the phone screen to use when no call more frequently, but if the phone’s battery life is not enough, these functions will be limited. Therefore, the high efficiency of the system power management, including the screen and button backlight power management becomes very important functions such as camera flash past, only to see the high-end phones will gradually become the standard configuration.

These will also have a white LED backlight driving circuit design challenges: bigger screen represents a more regional need backlight, it is necessary to enhance the overall efficiency of the drive device; due to limited space, it must be integrated in a single package multi-function; not only consider the size, the thickness must be reduced, in particular, sliding and folding the shape of products.

Phone white LED tubes driver circuit is frequently used in the two architectures: LED is connected in series inductor boost converter circuit; each LED stable current source to drive the charge pump drive. The inductive solution can bring the best overall efficiency of the charge pump due to the use of small ceramic capacitors as energy conversion devices, the smallest. Figure 1 and Figure 2 shows the typical application circuit of the two driven architecture. At present, the power LED efficiency continue to be improved, reducing the power consumption of the backlight LED, it can provide higher light output with less of the LED. This means that two or three years ago, four LED backlit 1.5 inch screen, now just two power only half of the LED will be able to get the same performance.

To meet this demand, you need one capable of driving two LED new products such as led flood lights, and can support a very low current low-power standby operation of the backlight of the screen. To solve this problem, NCP5602/12 series of charge pump LED driver devices designed to support ultra-low current ICON mode, while the simple single-wire or I2C serial bus provides two LED ordinary backlight. In addition to support for the latest thin and light package trend, these products are designed using very thin LLGA micro packaging technology (2 × 2 × 0.55mm) to support the ultra-thin applications. In addition, part of the improved LED materials and design has a lower forward voltage (reduced from 3.6V to 3.1V), inductive solution, the same power that can drive more LEDs. More complex LED drive device, such as NCP5604A / B has a voltage conversion mode select, provide optimal power conversion at the same time lower power consumption of the integrated current source, the lithium-ion batteries used in mobile power supply most of their working time to reach 85% conversion efficiency (PLED / Pin).

LED flash camera phone configuration, this Semiconductor has developed the NCP5608 multiple-mode charge pump LED driver, which drives four LEDs for the backlight of the main screen and sub screen, and is provided to drive 1W power LED up to the high current output of 400mA. These features are designed to share a high-efficiency charge pump converter circuit, in order to minimize the number of external capacitors.

The third development trends of the led lighting design industry

Trends: continued to promote green led lights, environmentally friendly lighting

Professor Zhan said that the moment of led lighting design needs to pay attention to the problem of energy efficient, that is environmentally friendly lighting. Architectural led lighting design standards, which clearly defined the unit of space lighting power density design and planning, the efficacy of the lighting load per square meter beyond the rules and regulations formulated by the illumination, this design case of excessive energy consumption, which can not pass. In this regard, the lighting designer need to choose the light-efficient lighting equipment, or change of lighting to achieve the required standard.

led lighting design

However, the rational use of efficient light source, the practice is not easy to achieve. Such as rural areas, landscape lighting does not need light, but local leaders will be asked to “highlight”; in the bright environment of the downtown commericial street, and there will be ” comparisons of light”. Many small towns, the business district at nigh, often as a city that never sleeps. In fact, this is an abnormal development of led lighting design.

Therefore,  excessive landscape lighting caused a huge waste of money and energy. As this phenomenon is still relatively common, Zhang professor called on designers to adhere to the road of energy efficient efficient lighting, which is very meaningful.

Trend: Made in China should be among the high-end R & D centers

For domestic lighting industry, Zhang professor stressed that lighting products produced in China in the number of the largest in the world, but the quality and the ability of independent innovation and R & D needs to be improved.

Project of the Beijing Olympic Games, Asian Games in Guangzhou, China’s LED business performance is remarkable. However, the advanced international level, there are still huge gaps in product performance and technical aspects. Because these two items on the lighting technical standards and product quality is very demanding, many of the lighting project are dominated from abroad.

At present, the competitive LED lighting manufacturers are very less. The main reason is the gap between research and innovation; The industry as a whole is less favorable environment which is not conducive to the healthy development of enterprises; investment scale and the poor is too large; In addition to the disadvantage of the patent. How to enhance the corporate brand image and enhance the corporate brand image and enhance the design and development of force. That will be the key to improve the overall strength of the post-Olympic era in China’s lighting industry.

The second development trends of the led lighting design industry

Trends: designer guide lamps instead of lamps to guide designers.

Perhaps the vast majority of lighting professionals agree that 2010 is a massive attack on the traditional lighting of the year for LED industry. It is no doubt that LED products are excellent. However, any lighting project, priority LED products, which has become the beginning of the bottleneck of many designers career.

led lighting design

In this regard, the point of view of the surface of the smoke is a reasonable choice of light source according to the lighting quality requirements.

He pointed out that current lighting acknowledged a confusing phrase: a city with a different partition, you can use different lighting to show the different effects. Cultural district in the city reflects the precipitation of a historical business district needs to be pretty bright, LED lights, and the rational use of neon, make cultural precipitation and flavor of the times each to shine and complement each other.

There are a lot of designers like zoned for the prison, thinking that LED is designed for the”shiny” and “brilliance” and “technology” born. In fact, the only designer master the use of appliances, led lighting design is to achieve development by leaps and bounds.

LED changes to use, the American designer has done lighting design for the Tokyo Ginza Chanel is very good case.

The original American lighting designers find Ginza building brighter and brighter than another, so they decided to adopt the idea that “all others are bright, while I am lonely dark. Abandon the LED bright colors, using only black and white two colors, the night, the LED tube will be to create a classic Chanel totem. In the eyes of tourists, the Ginza is very bright, but the building is very dark; Other building is a dynamic flashy, the building is gentle classic.

Whenever the development of productive forces can not control the new tool, the relations of production will be a problem, the output also non-human wish. Presumably, in theled lighting design industry to comply with this rule.

It comes to rapid development of China’s lighting industry in 2010, one of the pioneers of the field of architectural lighting become attached to more than half a century of academic dean Professor Zhan Qing spin told reporters, after the storm of the lighting industry for decades. China’s lighting industry is bound to open up their own one day. The lighting designer should also pay more attention.

The development trends of the led lighting design industry

2010 was a bumper year of China’s lighting design. This year, the Government promote the demonstration project”ten city thousand lights”. The world-class lighting project, the Shanghai World Expo and Guangzhou Asian Games debut; This year, led lights power supply,  lighting designers in China than 10,000, Tsinghua University, Fudan University dozens of colleges and universities offer a led lighting design courses; This year, the scale of China’s LED industry is about to exceed 110 billion yuan, representing an increase of 30 percent over 2009!

led lighting design

However, China’s led lighting design still have many deficiencies-imperfect market order, large differences in technical standards, severe light pollution and many other issues from time to time emerge;” experts refer to certain business district business district seems to light the garbage dump, poverty-stricken countries of Jiangsu spent million to build a world-class lighting project, the residents that night street lights like a day”articles are frequent newspaper. For doubt, five expert opinion pointed out that the lighting design industry, the next step in the development of the ten trends.

The surface of the smoked: Chairman of the Japan Association of led lighting design, a well-known led lighting products designer

Japanese design has never been compatible with the sense of form and function to win from their landscape and buildings, revealing the beauty of an warm. Japan’s famous lighting designers face the smoked lights, shining advantages.

Trends: designers should be good at the role of transposition, add the humane thinking

Crowned by the lighting industry a number of honors was the smoke that: Lighting design is not just the times the surface of the consumables, but on Earth the diversification of the various places “on the basis of the light culture. Excellent lighting designer should be familiar with this principle, lighting rendering “people feel comfortable” environment.

So, life in order to feel happy and “light design” what is it? On this point, a smoked surface as a lighting designer revealed the artist’s side: the light is directly on the person’s inner world impact, should have a better than a work of art moved, so that the sadness of the people’s hearts are cure, and more emphasis on moderate excitement, and physical and mental illness battle.

Talked about the lighting industry in China “exports and domestic sales”

The industrialization in developed countries has been completed, the process of urbanization in city has apparently slowdown. Habitat plain near consumer has entered the service sector, the basic stability of the demand for lighting products. However, the pace of mediation of industrial structure in developed countries did not stop. Some labor-intensive industries continue to make substantial transfer to developing countries(view led lights), making a difference in the degree of developed countries, domestic coherent industry supply some landing lighting industry products for the Chinese to go abroad create a certain market space.

lighting industry

Lamps exports: for example the 2010 Guangdong Zhongshan lighting

In 2010, Zhongshan lighting value of exports reached $ 1.348 billion,  ranking the biggest this year, an increase of 37%. Zhongshan, electric light and lighting are the main exports to other regions like Europe, USA, Middle East and ASEAN, the EU and the Zhongshan lamps largest export market, export value reached  $ 325 million.US market growth rate ranks the first of four major export markets last year, Zhongshan exports to the U.S. $ 300 million, an increase of 41.5%. The rapid growth of emerging markets, last year, lighting exports to Africa, South American market increased by 107.8% and 78.6%, coming from behind the revival of the Russian market, and increase of up to 72.3%.

On the category of export lamps, LED products increased three times. Last year, LED products, exports of about $ 42,923,000, an increase of 344%, indicating that the LED technology speed up application speed of the electric light and lamps, replace some incandescent and energy-saving lamps needs. At present, Zhongshan has formed a major lighting manufacturers for nearly 20 annual export of over a hundred million, of which some enterprises gradually opened up to Europe and the United States and other high-end market to high-quality products, but most enterprises on an OEM basis to participate in the international division of labor. Thus, the export situation of the entire lighting industry is showing an upward trend of the straight line.   Lighting export enterprises in 2011 is not difficult to see the light.

With the upgrading consumption ability of domestic products, Southwest, Northwest, Northeast and other places have great demand in modern lights. Local consumers with the lighting of the modern style have a lot of stress, which will promote the new type of light source lighting products. The future outlook of domestic lighting industry market is very impressive.