月份：2012年6月

On mains LED lighting

One. Hard to visit customer and satisfy the customers’ needs

A lot of LED Lights domestic sales are very edgy but full of energy. They can be hard to find customers, but will not stop to rest to think about the real needs of customers. They did not grasp the customer, but carried away by customers. By contacting with customer, we should get the follow analysis ideas:

a) whether the product itself meets the customers’ requirements or not? regardless of quality or price, or no value. We should find what  customers are most concerned about on mains LED lighting. We have to remember one sentence:’ The product is always right, the customer is always right.” But do not forget another word:” Respect yourself, cherish customers and understand how to give up.”

b)Does customer accept your professional level? If you can not get customer’s acceptance, and you should learn from the customers. Treat your customer as a teacher or student is a very interesting thing. If customers speak highly of you and treat you as the expert. That reflects yourselves’ value. Then you should help customer to solve a lot of problems and be friend with them is a natural thing.

c) The platform in your company should fight for the interests of their own. Under the premise of non-violate the company’s interests, we should be on the customer’s side as far as possible. Be stick to ourselves principles, believe in ourselves and company, and also believe in customers, believe Eneltec LED HIGH BAY.

Two. “Corporate strategy” and “own opinion”

The guiding ideology of the business operations have the wrong direction to sales. Sales are very obedient and adaptation to market, so it result in no gain for both company and individual performance. When they have good insights, but they have no company’s support, just fighting singly. The above two kinds of phenomena is a lot, the key reason is lying on the sales person, who is not give timely feedback on market demand, there is no strong courage to get the company support about mains LED lighting, no communicate with internal harmony. A company’s business is an organization, cohesion, and if they can not enhance each other, certainly it can not grow the business.

Three. “Can not find customer” and “no place a order”

If you can not find customers, it means you do not understand the industry. You should ask experienced people. Looking for engineering when you are in outdoor, and looking for business when you are indoor. Good at using a search engine, capturing the keyword, and expand own horizons, and have more contact with our peers. And tolerant is very important.

If customer do not place order, you should first ask yourself how to assess the client, why do you assess like this and list a table. In the LED street light industry, many business are lying to myself and even many business owners. Do not intend to abandon this client. You should carefully analyze the customer why they are not placing a order?

How to choose suitable LED power suppliers?

The load characteristics of LED determine that only power suppliers with higher reliability can be used. Within a certain section, increasing the external voltage will cause an exponentially increased current. When LED Lights work in the normal condition, subtle changes in voltage will cause widely vibrations in current. Thus most switching power suppliers are no longer suitable for LED applications. Because the output of switching power suppliers is not a constant value. However, how to choose right LED power suppliers for LED applications?

The load characteristics of LED determine that only power suppliers with higher reliability can be used.

LED is very sensitive for input voltage. The normal working voltage for LEDs is around 3.0V-3.6V (different power has different input voltage). A slightly fluctuation in input voltage will lead to a violent change in current, consequently causing a violent power output. If the vibration exceeds a certain threshold, accidents may happen. Experiments proved that adding voltage suppressing components (TVR, TVS) in circuits is useless.

 

Reliability and efficiency are constrained by each other. Power suppliers with higher efficiency must have a lower reliability, vice versa. In order to reduce the influence of output voltage to input voltage, electrical energy must go though several transformations. For example, the reliability of BUCK circuit is not very high. But BUCK-BOOST circuit has much better reliability than BUCK circuit. This has been proved. Known by those who had electricity background, when the switch of BUCK circuit is turned on, LED HIGH BAY loads and inductances are cascaded in the circuit under 300V external voltage. BUCK-BOOST circuit separately charge inductances firstly. When the BUCK-BOOST circuit is switched off, then inductances in BUCK circuit will transmit electrical energy to LEDs. The difference between them is BUCK circuit will work directly under 300V voltage in a period of time while LEDs in BUCK-BOOST circuit will not be explored under such high voltage. Thus the later has a much better reliability than the former. And relatively, BUCK-BOOST circuit actually has two electrical transmission sections: from power supplier to inductances and then from inductances to LEDs while BUCK circuit need only one step to charge LED STREET LIGHTS. In the aspect of efficiency, BUCK circuit has a better performance.

 

Thus currently used LED power suppliers are followed such law: isolated circuit has a better reliability than non-isolated circuit. Low voltage circuit has a better reliability than high voltage circuit.


Subject to the core technology, indoor LED lighting products hardly to go further (3)

This type of government leading developing mode has been questioned by many experts and insiders. They generally thought that the excessive government support will give birth to the dependency of domestic LED manufacturers. They will be keen to project biddings rather than promote innovations in products and market. In fact, this tendency is obvious. Many LED manufacturers would like to apply projects under explicit state policies to enjoy the subsidies. In Mr. Wu’s opinion, LED high bay lighting is a big direction. But in most conditions, local governments became more and more utilitarian. “lighting is easy, maintain the lighting is not so easy.”

 This type of government leading developing mode has been questioned by many experts and insiders.

Fallen upstream.

“In LED lighting area, we should be alert every moment. Otherwise, the government subsidies will be in foreign companies’ back pocket.” One office from material section of MIIT said to reporters. In his point of view, there are two main reasons for the government substantial supports in this field: 1. The urgent needs for energy saving; 2. The huge economic potential in global LED lighting market. However, Chinese manufactures are in the lowest position of the entire industrial chain, especially for indoor LED lighting products. Normally, LED industry chain can be divided into three parts: upstream, midstream and downstream. Upstream is chip manufacture, epitaxy manufacture and equipment manufacture. Midstream is chip package. Downstream is LED street light applications manufacture. Upstream LED chip manufacture has been monopolized by Cree, Philipslumileds and Nichia. And chips for LED low-end products have also been controlled by chip manufacturers from Taiwan. Currently, the cost of LED chip is occupied more than 60% of the entire LED lamp cost. When domestic LED companies successfully listed, they had to face up the fact that developing upstream market, inventing their own LED chips. In accordance to the national regulations, large LED enterprises should bear responsibility of independent innovations of LED core technologies. Whether these listing LED enterprises can hold seats in LED upstream market is still anyone’s guess.

 

At present, our manufacturers of indoor LED lighting products are concentrated on midstream and downstream. LED package and LED applications manufacture have relatively low-barrier, leading to the fierce competitions from domestic LED company. Profit is increasing reduced. Nowadays, most sophisticated LED chip technology is held in the hand of foreign companies. This technologies are protected by patent right. Domestic manufacturers have to pay for them. “We have become workers for foreign companies.”


Subject to the core technology, indoor LED lighting products hardly to go further (2)

However, crises of energy-saving lamps have become chances for LEDs. It is a controversial topic that whether indoor LED lighting products can finally replace energy-saving lamps. The industry is generally of the view that LED lights and energy-saving lights are two independent products within two distinguished stages of lighting development. They may coexist for a long time. Hong Wu, chairman of Shanghai Lighting Society indicated that energy-saving lamps will not be replaced by LED in next three years. “In 2011, we estimate that this process will cost us at least 10 years, now it seems not.” Mr. Wu also said that if judged by the strict international LED standards, most of the LED lamps currently on the market are unqualified, especially for indoor LED lighting products.

 However, crises of energy-saving lamps have become chances for LEDs. It is a controversial topic that whether indoor LED lighting products can finally replace energy-saving lamps.

Restrictions from core LED chip technologies reduce the quality of domestic LED products, which has become an obvious weakness of Chinese LED manufacture. Cooling problem of high LED lighting products and more reliable and more efficient fluorescent powder are two main technical difficulties for international LED lighting industry. According to the current technology level of China, replacing energy-saving lamps (less than 10W) by LED lighting techniques should have no problem. But for energy-saving lamps with power consumptions more than 10W, LED shows its incapability.

 

LED is an artificial spawning baby. The main factor of artificial spawn is government support policies rather than materials. The State Council executive meeting held on 16th May determined the implementation of encourage consumption policies of energy-saving household electrical appliances. Central government funding for these subsidies will total 26.5 billion yuan, in which 2.2 billion yuan are for promotion of LED and energy-saving lighting products. This is the third favor from central government to LED industry this year. In one of previous documents indicated that Chinese government will spend nearly 40 billion yuan on purchasing LED street lights and provide 30% subsidies for providers. At local level, Pearl River Delta, Yangtze River Delta and Fujian Province have become the LED investment hot spots. Local governments issued all kinds of incentives to LED industries. As the largest LED manufacturing base, Guangdong was typically cared for by local government.


Subject to the core technology, indoor LED lighting products hardly to go further (1)

Since the beginning of the year, LED lighting products have become the new darling for policy and fund. Support policies and subsidy programs keep emerging. LED lighting business started to revive from the global economic depression. However, behind the seeming recovery, LED lighting industry still has many cannot-be-ignored problems: lacking of upstream chip technologies, domestic LED lights manufacturers either fluctuate in low profit downstream or produce low quality LED chips. Therefore, indoor LED lighting products can hardly go further. Some LED companies only rely on support policies, impeding the market adaptability.

 

According to the industrial measure criterion, only when the market penetration of one product reaches 10%, it can be defined as the “take off” of this product. Presently, the penetration of LED high bay lighting products in Chinese market is only 2%. Lacking of core technology yet being artificial spawned raised concerns about LED lighting industry.

Since the beginning of the year, LED lighting products have become the new darling for policy and fund.

Subject to the core technology:

“Traditional energy-saving lamps will be replaced by LED lighting techniques finally. Either in energy saving aspect or in environment aspect, LED street light is better. The shapely raised rare earth prices in 2011 sped up this process.” Said Bujun Cai, assistant manager of WinNews Technology Co., Ltd. LED lighting industry is growing, but we cannot judge just from currently intense investment. Both LED lighting technology and widely used energy-saving lamps are national promoted energy-saving products, aiming to completely replace traditional filament lamps. In 2011 Chinese government released the first filament-lamp-replacing blueprint to ban the sale and import of ordinary filament lamps with power consumptions more than 100W. This plan will be implemented from 1st October, 2012. In the second step, filament lamps with power consumptions more than 15W will be banned to sale and import from 1st October, 2016. But the government tends to promote indoor LED lighting products as equivalent techniques.

 

The price increase of RE materials in 2011 caused the government’s tendency to LED. Both LED lighting technique and energy-saving lamps need to use RE (rare earth) phosphor materials, but the consumption of RE materials of the former is only 1/1000 of the later. Hit by skyrocketing RE materials prices, many energy-saving lighting manufacturers were forced to close. On the other hand, this price-raising storm also led to the sharply quality reduction of energy-saving products. Unqualified rate is closed to 50%.


Five Problems of LED lighting lamp industry (2)

Right now, nearly 80% LED projects are used in public works. Applying LED technique in civilian projects still need the support of government. After ten years development, LED lighting lamp industry met with its first bottleneck. LED manufacturers thus desired to be involved in more civilian projects. Since LED lamps are normally more expansive than traditional lights, it is hard to be accepted by ordinary families. Due to the low demand of residential LED lighting products and also the low profit of low power LED lamps, manufacturers have no interest in this area. “LED is a more sophisticated lighting technology, consuming less energy, more environment friendly. Government should expand it to people.” Said Fangwei Huang, chairman of Shanghai Lighting Association. Marketing manager of ChangLight Qiang Liu also expressed his opinion “In past five years, we put most of our energy and money in high power LED area. We tried hard to win biddings of public projects, since only in this way we can earn money. Relatively, we are weak in residential LED area. We thought this part is unworthy of attention as the low profit. Now we knew that we were totally wrong. We did not spend enough energy and money in this area. We are lack of technique, which is rather crucial. Besides, we have not established a complete set of distribution channels. Now we have to face up the fierce competitions from overseas ravels, we are vulnerable. ” Within ten years development, LED lighting technique cannot be wide spread as traditional energy-saving lamps in residential lighting area. Government can promote this new technology to people though civilian works. That is the reason why LED merchants called for the support of government.

Right now, nearly 80% LED projects are used in public works. Applying LED technique in civilian projects still need the support of government.

Bottleneck in technology and equipment. In the field of LED technology and epitaxy equipments, there is obvious bottleneck in domestic LED lighting lamp industry. Independent innovations and patents are concentrated on LED packaging area. In other crucial LED technology fields, like white LED, cooling design for high power LED applications, degeneration problem of fluorescent powder, were monopolized by LED giants from America, Europe and Japan.

 

Lack of an indentified price standard. Domestic LED manufacturers are generally small sized, resources separated. Most high power LED chips still rely on imports. Lacking of independent LED chip patents increases the cost of small sized LED manufacturers. Thus, it is very hard for them to work out an identified price list for their products.


tri band led grow light for track lights led

As we all know, the single LED high bay is low power in tri band led grow light track lights led. In order to obtain high-power, multiple parallel, for example, automobile taillights, single high-power LEDs are very expensive.

tri band led grow light for track lights led

One drawback is that the “spot”, the white tri band led grow light manufacturing defects in workmanship coupled with the errors of the reflector or lens, likely to cause a yellow circle. The disadvantage or weakness of the current semiconductor lighting in the following two aspects:

1, high prices of high power LED Lights At present, the market price of the 1 watt power white LED is about ten times than the price of traditional light sources.

2, high-power LED applications, light efficiency is low In the commercialization of more than 3 watts power light emitting diode light emitting efficiency is low, lower than the luminous efficiency of more than 100 lumens per watt high intensity discharge lamps, also lower than the rare earth tricolor fluorescent in more than 60 lumens per watt. If we talking about semiconductor lighting energy saving, energy saving, in fact, just set up within the small power range, the current technology and existing efficient light source high-power lighting does not save much power semiconductor light source, but the initial investment costs high. Another problem is the luminous efficiency is low the shift of the input energy into heat energy, tri band led grow light LED cold light source is just the light itself is not burning the body, but the resistance heat generated by the large current in a semiconductor material, or make LED STREET LIGHT produce a higher temperature of track lights led, produced by the semiconductor materials, light emitting diodes is not high temperature, overheating will make life significantly reduce the radiator to increase the volume of the lamps, the semiconductor light source, small size, light weight advantage disappear.

Based on the above analysis can be seen in terms of luminous efficiency and the price level, the semiconductor light sources in the short term really is not easy to enter the field of general lighting to replace conventional light sources. However, in the current state, the development of semiconductor lighting industry and avoid weaknesses in the dominant direction of positive development, promote technological progress and the maturity of the production process, the semiconductor lighting era  track lights led to come early.

triopo led light panel for commercial use

Currently, LED indoor lighting projects focused on the commercial lighting, decorative lighting. LED has been replaced in many places for the use of traditional light sources, especially the emergence of high-power LED LIGHTS, and accelerated the speed of the LED triopo led light panel to replace traditional lighting, but also makes LED indoor lighting a large area applications become a reality.triopo led light panel for commercial use
Now, 10 Application of LED indoor commercial areas are listed below.1. A high-class stores, shopping malls and other indoor commercial mood lighting.
LED STREET light energy saving and environmental protection, ultraviolet light, some of the businesses cater to display personalized light environment, psychology, and became the light source of some businesses show preferences for particular products.2. LED integrated light source with full-featured easy to control, you can create static and dynamic lighting effects, from white to any color of the whole spectrum, rendering a strong atmosphere of entertainment to the emergence of the LED to this type of design and decoration of the space environment, open Kai a new way of thinking.3. LED light source, small size, solid state lighting, to lighting manufacturers unlimited space to play, professional production of all kinds of different styles of LED lamps like triopo led light panel, LED full spectrum of any color and dynamic static lighting effects to make it decorative and create mood function of performance in this type of place.

4. Museum, art gallery and other places belonging to special occasions demanding lighting environments, the display of materials the special requirements of the illumination light source does not contain UV and thermal radiation.

5. Stage lighting in the commercial theater, TV studio, dance and photography
LED light source in indoor lighting applications, to the theater, studio lighting environment interpretation of a new concept.6. Hotels, guest houses, lighting use LED products, a different feeling to the customer, in addition to energy conservation, but also with a full luxury and warmth, the owners, the LED to create a personalized light environment can be fully highlight the strength of the enterprise.7. Demand for intelligent control of LED grayscale adjustable lighting environment can be based on different adjustment conference room or multi-purpose hall of the conference content, serious, or lively and can be freely set, LED intelligent lighting to meet the conference theme of light environment .8. Exhibitions, fashion shows, is the venue for businesses to showcase their products and services. Merchants in order to better attract customers, sell goods and eventually reached a cooperation agreement, they need a personalized light environment to showcase their products and services, the LED lighting domain in exhibitions and fashion shows come in handy.9. LED light color to contrast a warm, harmonious and warm waves of sentiment reflects the comfortable, casual atmosphere. Interpretation of the meaning of another application of LED home lighting such as triopo led light panel.

10, Including aircraft, buses, mass transit, high-speed rail, public transportation, lighting, LEDs, operating and maintenance costs can be substantial reduction.

Five problems of LED lighting lamp industry (1)

LED has been used in many public works in China, like Shanghai World Expo, Guangzhou Asian Games. But their performances cannot make people satisfied. Within three year, more than 100 thousand LED lamps had been replaced as a result of serious light attenuations. Theoretically, LEDs have an average working life of 50000 hours (can constantly work for 5.7 years). Facts proved that this value need to be further studied. Nowadays, LED lighting industry vigorously developed in China. It seems that everyone is striving to make a profit in this area. But no one ever questioned that whether this technology is matured or not. In next sections, we are going to list server problems of LED lighting lamp industry.

 

Local protectionism caused by support policies. Many local government introduced support policies in their region to help developing local LED lighting business. They give priorities to the LED lighting applications in most local public works, like municipal landscape lighting projects and traffic lighting projects, causing many midstream and downstream LED companies to put their most attentions on projects bidding. It is against the overall development of LED lighting industry. Lacking of an indentified LED lighting standard is another reason. Differences are obvious and ubiquitous among local standards. It is very hard for LED companies to expand the market in different other regions. In another view, this is also an obstacle for overall development of LED lighting lamp industry.

 

Lack of brand consciousness. Currently, China has more than 5000 LED manufactures. “dragons and fish jumbled together”. Product varies in quality. They have no independent brands, and keep copying each other. Right infringement emerges frequently in everywhere.

 

Civilian applications need government’s support. Generally, LED high bay lighting products are more expansive than traditional sodium lamps. The high up-front spending made many local government treated most LED civilian projects as over-bold investments. The promotion speed of LED applications in China is much lower than that of western countries. Ironically, China is the biggest LED factory in the world. However, some civil societies and business groups (Shanghai Lighting Association, Guangzhou Lighting Association, etc.) may impact an influence on local governments’ decisions. At the request of these associations, almost every first-level city had their own LED applications distribution center, for example, Shanghai LED Projects Center.

 

LED has been used in many public works in China, like Shanghai World Expo, Guangzhou Asian Games.

A rebound of domestic LED lighting industry in 2012

With the background of the global economic adjustment, domestic LED lighting industry cannot be immune from the invasion from international LED STREET LIGHT enterprises and competitions from domestic rivals. Some LED companies indicated that LED lighting industry will greet a rebound this year after hard times in the latter half of 2011. But this sign is unconspicuous. As the market competition intensifies and homogenization of products is increasing, cost of production will be raised and meanwhile prices will be dropped. Homogenization is no doubt the final result for every industry. Thus experts reckoned that a further concentration will be a main direction for domestic LED lighting industry and only giants can survive and win at last.

 With the background of the global economic adjustment, domestic LED lighting industry cannot be immune from the invasion from international LED enterprises and competitions from domestic rivals.

According to the statistics form National LED Engineering Research Institute, China has more than 5000 LED LIGHTS companies presently, 1/5 of which are packaging companies. Most competitions are concentrated in midstream and downstream companies. The upstream LED chip manufactures are scarce in China. More than 80% chips need to be imported from outside, especially for high power LED chips.

 

In the first quarter of 2012, the economy recovery stimulated the pick-up of LED demand, out of the shadows in previous year. In 2011, the continuous fluctuations in LED demand and together with the vigorous expanding of capacities caused the sharp fall in prices. The entire industry profitability is also suffered a substantial decline. With the recovery of demand in backlighting and lighting market, the decline in LED LIGHTS prices eased gradually. Take Taiwan for instance, the rebound rate for LED chips, package and backlight module market is respectively 17%, 20% and 5% in March this year. Chinese government intended to seize this moment to adopt a comprehensive program to further promote the domestic LED lighting industry. And LED backlight will be a breakthrough. Experts owed this to the vigorous development of smartphones. And the implementation of Guangdong Public Lighting Program is expected to be another catalyst. This implies that government interference will be a crucial factor in the rebound of LED lighting industry. Among various domestic LED PANEL lighting enterprises, those who owned independent selling channels and original design concepts will have more chances in future. This rebound may be the second life for Chinese LED lighting industry.